[BUGFIX] Prevent nested returnUrl parameters in DatabaseRecordList

The clipboard copy and cut actions do not longer define a returnUrl,
since the action does not switch the module. This previously led to
an endless loop of returnUrl parameters being added to the link.

Resolves: #94813
Releases: master
Change-Id: Ib267fcbc778342cd03d5d0a1a2c81283f98f87d0
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/70453


Tested-by: core-ci <typo3@b13.com>
Tested-by: Jochen <rothjochen@gmail.com>
Tested-by: Benni Mack <benni@typo3.org>
Reviewed-by: Jochen <rothjochen@gmail.com>
Reviewed-by: Benni Mack <benni@typo3.org>