Layout issue related to frames and courtesy time signatures

Nightly dd4530e, or 2.0.2 / Windows7

1) Load this file: test file.mscz
2) Insert an horizontal frame in the measure 2 (time sig 2/4)
3) Add a line break in measure 5 (before measure time sig 3/4)
4) Extend the horizontal frame just before the creation of a third system. Like this:

4) Add -> Frames -> Append a text frame (same issue with other frames)

5) Undo
Result: (measures 2 to 4 disappear)

6) Redo: nothing happens.
You must delete a frame for recover the layout and the measures.

- Note this issue doesn't occur if the courtesy time signatures are disabled (in Inspector, or in Style -> General -> Page -> Untick "Create courtesy time signatures")