Wrong width of last system once fill threshold exceeded
Ubuntu 14.04, GIT commit: 85b0ef0
1) new score, 4 measures
2) style / general / page
3) set last system fill threshold to 70%
4) add / frames / append horizontal frame
5) double click frame, stretch to right
Result: once edge of frame reaches margin, it jumps back to the left, and everything shrinks. Continuing to extended to the right and it jumps again once the threshold is reached.
See https://musescore.org/en/node/65126 for original report.
Possibly related to my changes for #24100: Horizontal frame at end of system followed by staff names
Vague description, I know, but hopefully I'll have it fixed before anyone has a chance to complain about the wording :-)