In the Rendering section for Samplings I added a name that already exists "Preview" there are now two Preview settings and when you try to delete either of them it errors saying. Unable to remove Preset Permission Error 13 access is denied.
What it should do (besides observe case properly ie caps other then first) is add a .001 to the duplicate name like it does in object tree etc. or error warning that preset name exists already.
What is the procedure to correct this when it's broken as described?