Crash on note entry after undo of add linked staff

Ubuntu Studio 14.04, GIT commit: f3548a9

1) create new score for acoustic guitar (standard staff or tab, doesn't matter)
2) after score is created, press "I" for create instruments dialog
3) click staff
4) add linked staff
5) OK
6) undo
7) click first measure of remaining staff
8), "N C"

Result: crash upon entry of first note