Comment #14 on issue 2933 by [email protected]: allow optional octavation signs for clefs
http://code.google.com/p/lilypond/issues/detail?id=2933
Regarding comment 12: sorry for not having tested this more thoroughly. Now it looks as if the regression tests stay unmodified. As for the warnings, I am not familiar with the tests in display-lily-tests.ly, but since I defined an additional property, I assume display-lily-tests.ly stumbles upon that.
