Re: 2, 11 regression: Adding a spanner-engraver twice adds dual spanners

[Graham Percival]

Ok, I've added it here.
http://code.google.com/p/lilypond/issues/detail?id=526

Han-Wen can decide which case is the bug.

Cheers,
- Graham

Rune Zedeler wrote:
> Graham Percival skrev:
> > Actually, I'd consider this a new feature, not a regression -- if you 
> > add an engraver multiple times, I'd expect lilypond to draw the 
> > feature multiple times.
>
> Okay.
> In this case somebody should go through engraver-init.ly to ensure that 
> no engravers are added twice anywhere.
> E.g. the DrumVoice is in trouble because it contains some dual engravers 
> (clones of the engravers already added at Voice context)
>
> Currently at DrumStaves, all text scripts are added twice upon each other.
>
> -Rune