Issue 1858 in lilypond: unexplained increase in profile reports

[lilypond]

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

New issue 1858 by address@hidden: unexplained increase in profile  
reports
http://code.google.com/p/lilypond/issues/detail?id=1858

The reported 'cells', in the profile output for the regression tests,  
doubled for several tests between 2.15.8 and 2.15.9.

"lyric-tie.profile" was in 2.15.8
 time: 0
 cells: 1125395

and is now in 2.15.9
 time: 0
 cells: 3615166

Anybody know why?
Anybody know whether this change implies any real changes to actual memory  
usage or performance?