#394 Duplicate IDs are created when activities are renamed.

[Klaus]

Yaoqiang will assign duplicate IDs if activities are renamed after dependant IDs (e.g. data inputs) have been generated.

To Reproduce:

• Create a User Task and add a Data Input to it. Yaoqiang will assign the ID _2 to the user task and Din_2_1 to the data input.
• Set the User Task's ID to "Foo". Note that the data input ID will remain Din_2_1.
• Now, save the file and close it. Open it again.
• Create a second User Task. It will be assigned the ID _2, since it is available again.
• Now add a data input to the User Task just created. It will be assigned the ID Din_2_1, but this ID already exists! Now we have two data inputs with the same ID. Yaoqiang has created an invalid BPMN file.

See the attached BPMN file for the result.

[史耀强(Blenta)]

Thanks for reporting this bug, I will fix it in the next release (4.1.8).