Segmentation fault: \addquote chokes on \new Voice

[Marcus Macauley]

I haven't upgraded to Lilypond 2.9.22 yet, but the following file  
generates a segmentation fault for me on Lilypond 2.9.17 (Linux).

Hopefully someone can run it on 2.9.22 to confirm that the bug still  
exists, or I'll repost once I've upgraded.

Marcus


\version "2.9.17"

% When lilypond is run on this file, it generates a segmentation fault.
% Apparently \addquote can't handle the \new Voice.
%
% The documentation mentions this --
% "8.3.3 Quoting other voices"
%  
http://lilypond.org/doc/v2.9/Documentation/user/lilypond/Quoting-other-voices.html
% -- but doesn't say anything about a segmentation fault.
%
% Here's the quote from that documentation page:
% "Only the contents of the first Voice occurring in an \addquote command
% will be considered for quotation, so music can not contain \new and
% \context Voice statements that would switch to a different Voice."

violinmusic = \relative g' { << \new Voice {r4 g f e} \\ {g,2 c} >> }

\addquote violin \violinmusic % comment out this line and it works just  
fine :-)

\score { \violinmusic
        \layout { ragged-right = ##t }
}