[BUGFIX] Duplicate exception code

Exception codes are unique now.

Resolves: #52294
Releases: 6.2
Change-Id: I4ad49b1ff0342ea36147b6ba0b01d270d9d9f3c5
Reviewed-on: https://review.typo3.org/27462
Reviewed-by: Christian Kuhn
Tested-by: Christian Kuhn
Reviewed-by: Anja Leichsenring
Tested-by: Anja Leichsenring