Issue 1512 in lilypond: Page-label.ly regtest failure

[lilypond]

Status: Accepted
Owner: ----
Labels: Type-Defect Priority-Critical Regression

New issue 1512 by address@hidden: Page-label.ly regtest failure
http://code.google.com/p/lilypond/issues/detail?id=1512

Page 3 of page-label.ly changed significantly between 13.46 and 13.47.   
With .46, the music occupies a single system - with .47 and subsequent it  
splits into 2 systems and some of the \mark text disappears off the side of  
the page.  It looks like the difference comes from minor adjustments to the  
spacing algorithms causing Lily to decide to break the music into 2 systems  
- it can easily be rectified by updating the regtest itself to place a  
\noBreak on the relevant line.  Doing this causes the image to return to  
being identical.

I'm classifying this as regression-critical, since that's the strict  
situation, but propose a patch to the regtest as above should be used to  
fix it.

Attachments:
        page-label-page3.13.46.png  7.8 KB
        page-label-page3.13.47.png  8.6 KB