Crash when toggling visibility of a line break over a multimeasure rest
1- Create a score with 3 empty measures and insert notes in the 4th measure;
2- Enable multimeasure rests;
3- Drag a Line Break to the multimeasure rest;
4- Select the little line break icon at the end of the multimeasure rest (i.e. line break handler);
5- Toggle visibility -> crash.
Windows 8.1, commit 75018ae
Actually, toggling visibility of a line break icon does not make much sense (it is already an invisible element).