Offset parameters of rests are saved incorrectly

Steps to reproduce:
1) Create a new score
2) Select a rest and offset it in the X or Y direction.
3) Save the file and reopen.
Expected: The rests stay in the position they were set to.
Actual: The rests move in the x and/or y direction (offset values are different than what was saved).

Now make any change to the file (doesn't have to be an offset). Save and reopen. The effect is compounded for any rests with non-default offset parameters. The effect seems to be different for different kinds of rests.

R.7e8e83b Nightly Build
Operating system: Windows 8

GIT commit: 7e8e83b