bug#54200: 13.0.14; Preview incorrectly folds math environments with TeX-engine LuaTeX

[Liam Hupfer]

When I run `preview-buffer` on the attached file, I get a preview that
looks like "The probability of an initial subsequence of length 3",
where multiple math environments are folded into the "3" preview. If I
move the point over the preview, it unfolds and I can see the other
previews have been generated, but they are not visible due to the
incorrect folding. Any ideas?

—Liam

Emacs  : GNU Emacs 28.0.90 (build 1, x86_64-pc-linux-gnu, GTK+ Version 3.24.31, 
cairo version 1.16.0)
Package: 13.0.14

Run buffer contents:

Running `Preview-LaTeX' on `~/tmp/test-org-auctex/_region_' with ``lualatex 
--jobname=_region_  -file-line-error   --synctex=1 
"\nonstopmode\nofiles\PassOptionsToPackage{active,tightpage,auctex}{preview}\AtBeginDocument{\ifx\ifPreview\undefined\RequirePackage[displaymath,floats,graphics,textmath,sections,footnotes]{preview}[2004/11/05]\fi}"
 "\input" "\detokenize{" _region_.tex "}"''
This is LuaHBTeX, Version 1.13.0 (Web2C 2021/NixOS.org)
 restricted system commands enabled.
LaTeX2e <2021-11-15> patch level 1
L3 programming layer <2021-11-22>
No auxiliary output files.

(./_region_.tex  !name(test-auctex-preview.tex) 
(/nix/store/1mygi6rjbjrf6jg944wbclfy64bl0pfi-texlive-combined-2021/share/texmf/tex/latex/base/article.cls
Document Class: article 2021/10/04 v1.4n Standard LaTeX document class
(/nix/store/1mygi6rjbjrf6jg944wbclfy64bl0pfi-texlive-combined-2021/share/texmf/tex/latex/base/size10.clo
luaotfload | db : Reload initiated (formats: otf,ttf,ttc); reason: File not 
found: "lmroman10-regular".)) 
(/nix/store/1mygi6rjbjrf6jg944wbclfy64bl0pfi-texlive-combined-2021/share/texmf/tex/latex/l3backend/l3backend-luatex.def)
No file _region_.aux.
(/nix/store/1mygi6rjbjrf6jg944wbclfy64bl0pfi-texlive-combined-2021/share/texmf/tex/latex/base/ts1cmr.fd)
 
(/nix/store/1mygi6rjbjrf6jg944wbclfy64bl0pfi-texlive-combined-2021/share/texmf/tex/latex/preview/preview.sty
 
(/nix/store/1mygi6rjbjrf6jg944wbclfy64bl0pfi-texlive-combined-2021/share/texmf/tex/generic/luatex85/luatex85.sty)
 
(/nix/store/1mygi6rjbjrf6jg944wbclfy64bl0pfi-texlive-combined-2021/share/texmf/tex/latex/preview/prtightpage.def)
 
(/nix/store/1mygi6rjbjrf6jg944wbclfy64bl0pfi-texlive-combined-2021/share/texmf/tex/latex/preview/prauctex.def
No auxiliary output files.


(/nix/store/1mygi6rjbjrf6jg944wbclfy64bl0pfi-texlive-combined-2021/share/texmf/tex/latex/preview/prauctex.cfg))
 
(/nix/store/1mygi6rjbjrf6jg944wbclfy64bl0pfi-texlive-combined-2021/share/texmf/tex/latex/preview/prfootnotes.def)
Preview: Fontsize 10pt
Preview: PDFoutput 1
)  !name(test-auctex-preview.tex) !offset(-3)
./_region_.tex:6: Preview: Snippet 1 started.
<-><->

l.6 ...bility of an initial subsequence of length \(
                                                  n\) is \(2^{-n}\). For exa...
Preview: Tightpage -32891 -32891 32891 32891
./_region_.tex:6: Preview: Snippet 1 ended.(282168+0x393370).
<-><->

l.6 ...ity of an initial subsequence of length \(n\)
                                                   is \(2^{-n}\). For exampl...
[1{/nix/store/1mygi6rjbjrf6jg944wbclfy64bl0pfi-texlive-combined-2021/share/texmf-var/fonts/map/pdftex/updmap/pdftex.map}]
./_region_.tex:6: Preview: Snippet 2 started.
<-><->

l.6 ... an initial subsequence of length \(n\) is \(
                                                  2^{-n}\). For example, the...
./_region_.tex:6: Preview: Snippet 2 ended.(521815+0x1094016).
<-><->

l.6 ...ial subsequence of length \(n\) is \(2^{-n}\)
                                                  . For example, the probabi...
[2]
./_region_.tex:6: Preview: Snippet 3 started.
<-><->

l.6 ...bility of an initial subsequence of length \(
                                                  3\)
./_region_.tex:6: Preview: Snippet 3 ended.(422343+0x327681).
<-><->

l.6 ...ity of an initial subsequence of length \(3\)

[3])
(see the transcript file for additional information)
 406 words of node memory still in use:
   3 hlist, 1 vlist, 1 rule, 2 glue, 3 kern, 1 glyph, 4 attribute, 48 
glue_spec, 4 attribute_list, 1 write nodes
   avail lists: 2:28,3:5,4:2,5:25,6:3,7:151,8:3,9:10,10:1,11:14
</nix/store/1mygi6rjbjrf6jg944wbclfy64bl0pfi-texlive-combined-2021/share/texmf/fonts/type1/public/amsfonts/cm/cmmi10.pfb></nix/store/1mygi6rjbjrf6jg944wbclfy64bl0pfi-texlive-combined-2021/share/texmf/fonts/type1/public/amsfonts/cm/cmmi7.pfb></nix/store/1mygi6rjbjrf6jg944wbclfy64bl0pfi-texlive-combined-2021/share/texmf/fonts/type1/public/amsfonts/cm/cmr10.pfb></nix/store/1mygi6rjbjrf6jg944wbclfy64bl0pfi-texlive-combined-2021/share/texmf/fonts/type1/public/amsfonts/cm/cmsy7.pfb>
Output written on _region_.pdf (3 pages, 30885 bytes).
SyncTeX written on _region_.synctex.gz.
Transcript written on _region_.log.

TeX Output exited as expected with code 1 at Mon Feb 28 15:13:57
Running `Preview-PDF2DSC' with ``pdf2dsc _region_.pdf 
_region_.prv/tmp05CdoK/preview.dsc''

Preview-PDF2DSC finished at Mon Feb 28 15:13:57
Running `Preview-Ghostscript' with ``/etc/profiles/per-user/lh/bin/rungs 
-sOutputFile\=_region_.prv/tmp05CdoK/pr1-\%d.png -q -dDELAYSAFER -dNOPAUSE 
-DNOPLATFONTS -dPrinted -dTextAlphaBits\=4 -dGraphicsAlphaBits\=4 
-sDEVICE\=png16m -r171.762x170.688 -dDELAYBIND''

Preview-Ghostscript finished at Mon Feb 28 15:13:58


current state:
==============
(setq
 AUCTeX-version "13.0.14"
 LaTeX-command-style '(("" "%(PDF)%(latex) %(file-line-error) %(extraopts) 
%(output-dir) %S%(PDFout)"))
 image-types '(svg png gif tiff jpeg xpm xbm pbm)
 preview-image-type 'png
 preview-image-creators '((dvipng (open preview-gs-open 
preview-dvipng-process-setup) (place preview-gs-place) (close 
preview-dvipng-close))
                          (png (open preview-gs-open) (place preview-gs-place) 
(close preview-gs-close))
                          (jpeg (open preview-gs-open) (place preview-gs-place) 
(close preview-gs-close))
                          (pnm (open preview-gs-open) (place preview-gs-place) 
(close preview-gs-close))
                          (tiff (open preview-gs-open) (place preview-gs-place) 
(close preview-gs-close)))
 preview-dvipng-image-type 'png
 preview-dvipng-command "dvipng -picky -noghostscript %d -o %m/prev%%03d.png"
 preview-pdf2dsc-command "pdf2dsc %(O?pdf) %m/preview.dsc"
 preview-gs-command "/etc/profiles/per-user/lh/bin/rungs"
 preview-gs-options '("-q" "-dDELAYSAFER" "-dNOPAUSE" "-DNOPLATFONTS" 
"-dPrinted" "-dTextAlphaBits=4" "-dGraphicsAlphaBits=4")
 preview-gs-image-type-alist '((png png "-sDEVICE=png16m") (dvipng png 
"-sDEVICE=png16m") (jpeg jpeg "-sDEVICE=jpeg") (pnm pbm "-sDEVICE=pnmraw")
                               (tiff tiff "-sDEVICE=tiff12nc"))
 preview-fast-conversion t
 preview-prefer-TeX-bb nil
 preview-dvips-command "dvips -Pwww -i -E %d -o %m/preview.000"
 preview-fast-dvips-command "dvips -Pwww %d -o %m/preview.ps"
 preview-scale-function '(closure (t) nil (* (/ 10.0 (preview-document-pt)) 
preview-scale))
 preview-LaTeX-command '("%`%l \"\\nonstopmode\\nofiles\\PassOptionsToPackage{" 
("," . preview-required-option-list)
                         
"}{preview}\\AtBeginDocument{\\ifx\\ifPreview\\undefined" 
preview-default-preamble
                         "\\fi}\"%' \"\\detokenize{\" %(t-filename-only) \"}\"")
 preview-required-option-list '("active" "tightpage" "auctex" 
(preview-preserve-counters "counters"))
 preview-preserve-counters nil
 preview-default-option-list '("displaymath" "floats" "graphics" "textmath" 
"sections" "footnotes")
 preview-default-preamble '("\\RequirePackage[" ("," . 
preview-default-option-list) "]{preview}[2004/11/05]")
 preview-LaTeX-command-replacements nil
 preview-dump-replacements '(preview-LaTeX-command-replacements
                             ("\\`\\([^ ]+\\)\\(?: +\\(?:\\(--?kanji[= ][^ 
]+\\)\\|\\(--?output-directory[= ][^ ]+\\)\\|-\\(?:[^ 
\\\"]\\|\\\\.\\|\"[^\"]*\"\\)*\\)\\)*\\(.*\\)\\'" "\\1 -ini \\2 \\3 
-interaction=nonstopmode \"&\\1\" " preview-format-name ".ini \\4")
                             )
 preview-undump-replacements '(("\\`\\([^ ]+\\)\\(?: +\\(?:\\(--?kanji[= ][^ 
]+\\)\\|\\(--?output-directory[= ][^ ]+\\)\\|-\\(?:[^ 
\\\"]\\|\\\\.\\|\"[^\"]*\"\\)*\\)\\)*.* \"\\\\input\" \"\\\\detokenize{\" 
\\(.*\\) \"}\"\\'" "\\1 \\2 \\3 -interaction=nonstopmode -file-line-error " 
preview-format-name " \"/AUCTEXINPUT{\" \\4 \"}\"")
                               )
 preview-auto-cache-preamble nil
 preview-TeX-style-dir 
"/home/lh/.config/emacs/.local/straight/build-28.0.90/auctex/latex"
 )

Output from running `/etc/profiles/per-user/lh/bin/rungs -h':
GPL Ghostscript 9.55.0 (2021-09-27)
Copyright (C) 2021 Artifex Software, Inc.  All rights reserved.
Usage: gs [switches] [file1.ps file2.ps ...]
Most frequently used switches: (you can use # in place of =)
 -dNOPAUSE           no pause after page   | -q       `quiet', fewer messages
 -g<width>x<height>  page size in pixels   | -r<res>  pixels/inch resolution
 -sDEVICE=<devname>  select device         | -dBATCH  exit after last file
 -sOutputFile=<file> select output file: - for stdout, |command for pipe,
                                         embed %d or %ld for page #
Input formats: PostScript PostScriptLevel1 PostScriptLevel2 PostScriptLevel3 PDF
Default output device: x11alpha
Available devices:
   alc1900 alc2000 alc4000 alc4100 alc8500 alc8600 alc9100 ap3250 appledmp
   atx23 atx24 atx38 bbox bit bitcmyk bitrgb bitrgbtags bj10e bj10v bj10vh
   bj200 bjc600 bjc800 bjc880j bjccmyk bjccolor bjcgray bjcmono bmp16 bmp16m
   bmp256 bmp32b bmpgray bmpmono bmpsep1 bmpsep8 ccr cdeskjet cdj1600 cdj500
   cdj550 cdj670 cdj850 cdj880 cdj890 cdj970 cdjcolor cdjmono cdnj500 cfax
   chp2200 cif cljet5 cljet5c cljet5pr coslw2p coslwxl cups declj250 deskjet
   devicen dfaxhigh dfaxlow display dj505j djet500 djet500c dl2100 dnj650c
   docxwrite epl2050 epl2050p epl2120 epl2500 epl2750 epl5800 epl5900
   epl6100 epl6200 eplcolor eplmono eps2write eps9high eps9mid epson epsonc
   escp escpage faxg3 faxg32d faxg4 fmlbp fmpr fpng fs600 gdi hl1240 hl1250
   hl7x0 hpdj1120c hpdj310 hpdj320 hpdj340 hpdj400 hpdj500 hpdj500c hpdj510
   hpdj520 hpdj540 hpdj550c hpdj560c hpdj600 hpdj660c hpdj670c hpdj680c
   hpdj690c hpdj850c hpdj855c hpdj870c hpdj890c hpdjplus hpdjportable ibmpro
   ijs imagen inferno ink_cov inkcov itk24i itk38 iwhi iwlo iwlq jetp3852
   jj100 jpeg jpegcmyk jpeggray la50 la70 la75 la75plus laserjet lbp310
   lbp320 lbp8 lex2050 lex3200 lex5700 lex7000 lips2p lips3 lips4 lips4v
   lj250 lj3100sw lj4dith lj4dithp lj5gray lj5mono ljet2p ljet3 ljet3d ljet4
   ljet4d ljet4pjl ljetplus ln03 lp1800 lp1900 lp2000 lp2200 lp2400 lp2500
   lp2563 lp3000c lp7500 lp7700 lp7900 lp8000 lp8000c lp8100 lp8200c lp8300c
   lp8300f lp8400f lp8500c lp8600 lp8600f lp8700 lp8800c lp8900 lp9000b
   lp9000c lp9100 lp9200b lp9200c lp9300 lp9400 lp9500c lp9600 lp9600s
   lp9800c lps4500 lps6500 lq850 lxm3200 lxm5700m m8510 md1xMono md2k
   md50Eco md50Mono md5k mgr4 mgr8 mgrgray2 mgrgray4 mgrgray8 mgrmono miff24
   mj500c mj6000c mj700v2c mj8000c ml600 necp6 npdl nullpage oce9050 oki182
   oki4w okiibm oprp opvp paintjet pam pamcmyk32 pamcmyk4 pbm pbmraw pcl3
   pclm pcx16 pcx24b pcx256 pcxcmyk pcxgray pcxmono pdfimage24 pdfimage32
   pdfimage8 pdfwrite pdfwrite pdfwrite pgm pgmraw pgnm pgnmraw photoex
   picty180 pj pjetxl pjxl pjxl300 pkm pkmraw pksm pksmraw plan plan9bm
   planc plang plank planm plib plibc plibg plibk plibm png16 png16m png256
   png48 pngalpha pnggray pngmono pngmonod pnm pnmraw ppm ppmraw pr1000
   pr1000_4 pr150 pr201 ps2write psdcmyk psdcmyk16 psdcmykog psdrgb psdrgb16
   pwgraster pxlcolor pxlmono r4081 rinkj rpdl samsunggdi sj48 spotcmyk
   st800 stcolor t4693d2 t4693d4 t4693d8 tek4696 tiff12nc tiff24nc tiff32nc
   tiff48nc tiff64nc tiffcrle tiffg3 tiffg32d tiffg4 tiffgray tifflzw
   tiffpack tiffscaled tiffscaled24 tiffscaled32 tiffscaled4 tiffscaled8
   tiffsep tiffsep1 txtwrite uniprint x11 x11alpha x11cmyk x11cmyk2 x11cmyk4
   x11cmyk8 x11gray2 x11gray4 x11mono xcf xes xpswrite
Search path:
   %rom%Resource/Init/ : %rom%lib/ :
   
/nix/store/hycn9y3nwgncnadsvdraj6ljsxydh897-ghostscript-9.55.0/share/ghostscript/9.55.0/Resource/Init
 :
   
/nix/store/hycn9y3nwgncnadsvdraj6ljsxydh897-ghostscript-9.55.0/share/ghostscript/9.55.0/lib
 :
   
/nix/store/hycn9y3nwgncnadsvdraj6ljsxydh897-ghostscript-9.55.0/share/ghostscript/9.55.0/Resource/Font
 :
   
/nix/store/hycn9y3nwgncnadsvdraj6ljsxydh897-ghostscript-9.55.0/share/ghostscript/fonts
 :
   
/nix/store/hycn9y3nwgncnadsvdraj6ljsxydh897-ghostscript-9.55.0/share/fonts/default/ghostscript
 :
   
/nix/store/hycn9y3nwgncnadsvdraj6ljsxydh897-ghostscript-9.55.0/share/fonts/default/Type1
 :
   
/nix/store/hycn9y3nwgncnadsvdraj6ljsxydh897-ghostscript-9.55.0/share/fonts/default/TrueType
 :
   /usr/lib/DPS/outline/base : /usr/openwin/lib/X11/fonts/Type1 :
   /usr/openwin/lib/X11/fonts/TrueType :
   /nix/store/ym9b1xyq8l3d0xdpxv0mcayqgj94kk8w-cups-2.4.0/share/cups/fonts
Ghostscript is also using fontconfig to search for font files
Initialization files are compiled into the executable.
For more information, see /no-path-to-docs/Use.htm.
Please report bugs to bugs.ghostscript.com.

test-auctex-preview.tex
Description: TeX document