Umbrello crashes when I use the redo function

[Alex Rampp]

Binary package hint: umbrello

Steps to reproduce the bug:
- Open umbrello and start a new class diagramm.
- Create a few classes, aggregations, whatever.
- Click onto the "Undo" button a few times
- Click onto the "Redo" button a few times
- Umbrello crashes with a segmentation fault.

Used Versions:
Kubuntu 8.10
KDE 4.1.3
Umbrello 2.1.3

I've attached the bug report and a core dump.

[Sergio Barjola (sbarjola)]

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.

[Jonathan Thomas (echidnaman)]

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.

[Sergio Barjola (sbarjola)]

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

[Alex Rampp (bitschupser)]

The problem still exists with version 2.2.0 on KDE 4.2

[Eiríkr Útlendi (erikanderson3)]

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.

[Eiríkr Útlendi (erikanderson3)]

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

[Eiríkr Útlendi (erikanderson3)]

CORRECTION:
- Umbrello 2.2.2