Time signature change deletes glissandi
Ubuntu 14.04, GIT commit: 6b554a9
1) new score, 4/4
2) add glissandi
3) change initial time signature to 2/4
Result: glissandi are deleted
I guess the code that rewrites measures needs to preserve them explicitly. Maybe this is addressed in PR for similar issue with melisma - #48436: Melisma and hyphens don't display correctly after time changes?