Driver in "Custom Properties" doesn't update name
Open, ConfirmedPublic

Description

System Information
Win 7 32bit

Blender Version
Broken: 2.78a

Exact steps for others to reproduce the error
If you try to rename shapekey with a driver, Graph editor will update it allright. Now do the same thing with name "prop" in "Custom Properties" (through "Edit" button) and driver will get error, until rename "prop" manualy in Graph editor.

Details

Type
Bug
Bastien Montagne (mont29) triaged this task as "Confirmed" priority.

This will need some work a bit to become possible...

(since we’d also want to get driver targets to be updated to new prop name)