Created attachment 1085114 [details]
Description of problem:
If you will rename some assigned process variable. The variable with assigned process variable will lose it assignment. See attachment.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. Create Business Process with variable "myVar" with type String
2. Add task and assign to it Input variable: "inputVar" with type String with Source "myVar"
3. Rename "myVar" to "yourVar" save Business Process and reopen.
4. Open Assignments for the task
"inputVar" losed it source. See attachment.
"inputVar" will have "yourVar" as a source
Related bug 1248986