[Lilypond-auto] Issue 2750 in lilypond: clef change confuses manual key signature

[lilypond]

Status: Accepted
Owner: ----
Labels: Type-Defect

New issue 2750 by address@hidden: clef change confuses manual key  
signature
http://code.google.com/p/lilypond/issues/detail?id=2750

Reported by James on bug-lilypond here:
http://lists.gnu.org/archive/html/bug-lilypond/2012-08/msg00062.html

See also a long thread on lilypond-user here:
http://lists.gnu.org/archive/html/lilypond-user/2012-08/msg00265.html

And this sub-thread too:
http://lists.gnu.org/archive/html/lilypond-user/2012-08/msg00316.html

Original post follows:
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In the following:
\version "2.14.2"
\score {
   \relative c' {
      \time 2/4
      \set Staff.keySignature = #`(((0 . 4) . ,SHARP) ((0 . 3) . ,SHARP))
      \clef treble
      c8 a c d
%%% Commenting out the following line solves the problem %%%
      \clef bass
      e fis d c
   }
   \layout {}
}

The clef change causes lilypond to error and not produce output. This also
errors in 2.15., while 2.12 does not error. Is there some way around this?
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