[trunk] Texts on page after the first: weird editing

Setup: trunk SVN rev. 4631; Qt lib 4.7.3; Ubuntu 11.04

Steps:

1) Open or create any score with some text(s) in pages after the first; a sample score is attached
2) Try to edit a text element on 2nd or 3rd or ... page; for instance try to correct the obvious typo error in the attached score text

Result: the edit 'blue box' is displayed on first page (if visible) and the text is not updated while edited; editing is in practice impossible.

Notes:
1) This applies to all the different types of text I have tried (staff text, tempo text, ...)
2) Editing of texts in the first page works correctly.