[trunk] chord text (Ctrl-K) of last staff of system shown in wrong position (regression)

Setup: trunk rev. 3514, Windows XP w/ SP3, Qt SDK 2010.04 (Qt Creator 2.0.0, Qt lib 4.7.0)

Steps:
1) This score has been created under 0.9.6.2 with some chord text (Ctrl-K) in both staves (the p and t under the staves).
2) Open it with trunk version.

Result:
Chord texts of the lower staff are shown muuuuuch lower than they should (in fact they end up onto the next system). This applies to the last staff of systems with multiple staves (with a single staff, there is no problem).

Expected result: the texts should be displayed in the same position as 0.9.6.2.

This image shows (part of) the same score in 0.9.6.2 and in trunk rev. 3514. (The image shows also other issues which are detailed in other posts).

Thanks,

M.