Copy / paste of empty measure creates incorrect rests (corrupt in 5/4)

Ubuntu 14.04, GIT commit: 13eccf9

1) empty score, 4/4
2) select two measures
3) copy
4) click somewhere else
5) paste

Result: the measures are pasted with normal whole rests rather than measure rests. This would be a relativewly minor nuisance (we lived with it in 1.3), but try it with a score in 5/4. You get a quarter rest only - measure is corrupt.

Shouldn't be hard to identify cause; will look into it soon.