Copy-paste an empty measure onto a measure located before a MM-rest causes corruption/crash
GIT commit 1736346 / Windows 10
1) "My First Score"
2) Enter a whole note in the second measure
3) Exit note input mode -> press M
4) Select the first measure (empty): image below
5) Copy-paste this first measure (or use "R" key) onto the second measure.
First unexpected result (concerning the selection)
6) Press "R" key