Umbrello crashes when I use the redo function

Thank you for taking the time to report this bug.

I have tested too, and it happens the most of times in the "rename object" action, so to reproduce it easily:
 - Create two class in a class diagram.
 - Create a agregation between the two classes.
 - Click "undo" to reach a "rename object" in the history and then click the redo action.

Could you install kdesdk-dbg and try to get a new backtrace? (It would also be nice if you could test with KDE 4.2 beta2, if possible) Thanks.

same backtrace with kdesdk-dbg installed with kde 4.2 beta 2.
If is there any other debug package that I need to install, I can get a new bt.

package version:
kdesdk 4:4.1.85-0ubuntu1~intrepid1~ppa1

The problem still exists with version 2.2.0 on KDE 4.2

Using Umbrello 2.2.1 on KDE 4.2.2.

Clicking "Undo" and "Redo" did *not* cause the SEGV, though it did produce weird symptoms -- undoing caused created objects to vanish (expected), but redoing caused them to show up again in the tree view but remain missing from the canvas (unexpected). Multiple undos and redos did not rectify this, nor did they cause the SEGV.

However, clicking on an item in the "Command history" pane on the lower left *did* cause the SEGV.

Attaching backtrace.

Used Versions:
- Kubuntu 9.04 (Jaunty)
- KDE 4.2.2
- Umbrello 2.2.1

CORRECTION:
- Umbrello 2.2.2