What steps will reproduce the problem? 1. Start with a mind-map containing several nodes (some parent and children nodes). 2. Move a few nodes, and delete at least one node. 3. Use Control-Z or menu undo to reverse the delete and movement actions.

What is the expected output? What do you see instead?

Expected: Control-Z will reverse the previous actions.

Observed: None of the actions are undone.

What version of the product are you using? On what operating system? Semantik Version 0.7.3 Using KDE Development Platform 4.6.2 (4.6.2)

Ubuntu 11.04 Linux version 2.6.38-11-generic

Please provide any additional information below.

works in trunk