LyricTie: Different font used from 2.12 to 2.13?

[RobUr]

Dear all,

everything was fine with LyricTies, until I came up with a score (say:  
lyrics in this score) when trying the current Lily devel.
What happened? In 2.12.3: all lyric ties have been placed beautifully  
where they have to be – starting right at the bottom right corner of the  
left letter and ending right at the bottom left corner of the following  
letter. On Mac OS X Tiger, Lily 2.12.3 (and before) resp. Pango/FontConfig  
has chosen "Helvetica" to borrow this special char from. Great – fits  
excellent!

NOW on the same machine – same OS, same hardware (sorry, can't change that  
much, it's a MacBook), no re-install ever since Lily 11.x lived here (may  
I call this "stable"?) – now Lily 2.13.34 upwards finds "MS-Gothic" to be  
tied to lyrically!!! It's not for the font, but for the way Mr U+203F is  
invoked: suddenly the glyph is much more narrow, it starts beneath the  
vertical center of the letter and ends halfway the wordspace, leaving the  
same gap before the following letter, where it was intended to stop.

So WHY do Lily 2.12 and 2.13 on the SAME MACHINE choose different (system)  
fonts for the lyric tie? I greped all Lily-containers for "Helvetica" or  
"MS-Gothic" to discover a new preference for the new font, but without  
success. Is it Pango to make the choice on its own leaving Lily back with  
baddest spacing? Please, compare the clips and see, how ugly it's now on  
Mac OS X :(( I've found some code to modify the lyric tie spacing, but  
that's just a solution for my local machine, not suitable to give away ...

Setup: LP 2.12.3 and 2.13.11–35 on Mac OS X (10.4.11 Intel)

Regards,
Robert
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lyric-tie-2.13.35.png
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lyric-tie-2.12.3.png
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