Description of problem:
If you will open existing project and change type task with shape menu you can't save Business Process without other changes (to move something and so on). Changing throw properties bar works as expected. (see Attachment).

Version-Release number of selected component (if applicable):
6.2.CR1

How reproducible:
always

Steps to Reproduce:
1. Open existing Business Process with some tasks
2. Change it type with shape menu
3. Try to save Business Process

Actual results:
"Process have no changes" dialogue will be shown

Expected results:
You can save your changes in Business Process

Additional info: