The number above the multimeasure rests is not updated when appending measures in parts

GIT commit: e073d67/ Windows 7

1) "My First Score"
2) File -> Parts -> New all -> Ok
3) Switch to Part
4) Press Ctrl + B (for appending a measure)

Expected result (as the 2.0.3): the number of the MM rests is updated (ie: 33)

Current result: a measure is "simply" appended, and particuraly, with the creation of an unexpected and additional end barline.

- Same behavior of course by appending few measures ( Shift + Alt + B)

This:

Instead of, as expected: