Re: [Lilypond-auto] Issue 2596 in lilypond: Patch: Protect a few events from gc.

[lilypond]

Updates:
        Owner: address@hidden

Comment #5 on issue 2596 by address@hidden: Patch: Protect a few events from  
gc.
http://code.google.com/p/lilypond/issues/detail?id=2596

The problem occuring in comment #1 and fixed by the second patch is _very_  
disconcerting.

It means that slurs_ is getting used _after_ the finalize method has  
already been called (and apparently in a state where the underlying grobs  
have already been collected).  It is also unclear how garbage protecting  
stored events is related to triggering the error symptom.  Here some stuff  
is apparently still getting used after being half-deconstructed.  That the  
second patch made the symptom disappear again is not much of a  
consolation.  The first patch does nothing that should have triggered the  
problem, and the second patch, while being a good idea, does nothing that  
should really be able to fix it.