Baffling accented glyphs issue

[Peter Schaffter]

Here's something I haven't encountered before.  Have a look at the
attached files.  ps output was produced with

  groff -k file > file.ps

chats_1 contains a single accented glyph (î).  The glyph is mangled
in the ps output. chats_2 contains the same glyph plus an additional
one (é).  Here, neither glyph is mangled in the output.  The same
oddity occurs with the pdf driver and with -Tutf8.

Even more peculiar is that the introduction of *any* accented glyph
into the source file (in addition to the originally mangled glyph),
even one commented out at the end of the file, fixes the problem
with the initial mangled glyph.  Try adding

  .\"ô

or similar to the end of chats_1 and processing it to see what I mean.

I'm not sure if this is new behaviour because I can't
recall ever creating a document with only one accented glyph.

Ideas, anyone?

-- 
Peter Schaffter
https://www.schaffter.ca

chats_1
Description: Text document

chats_1.ps
Description: PostScript document

chats_2
Description: Text document

chats_2.ps
Description: PostScript document