[BUGFIX] Recover switched items in maxitems=1 selectMultipleSideBySide

Shows and re-enables all the options, that are currently not selected
when using maxitems = 1

Resolves: #86594
Releases: master, 8.7
Change-Id: I1f5e727ec42203981edaaf4b79bb6e201352d296
Reviewed-on: https://review.typo3.org/58599


Tested-by: TYPO3com <no-reply@typo3.com>
Reviewed-by: Andreas Fernandez <a.fernandez@scripting-base.de>
Tested-by: Andreas Fernandez <a.fernandez@scripting-base.de>
Reviewed-by: Daniel Goerz <daniel.goerz@posteo.de>
Tested-by: Daniel Goerz <daniel.goerz@posteo.de>
Reviewed-by: Nicolai Schirawski <ns@t3magic.de>
Tested-by: Nicolai Schirawski <ns@t3magic.de>
Reviewed-by: Eike Starkmann <starkmann@undkonsorten.com>
Tested-by: Eike Starkmann <starkmann@undkonsorten.com>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>
Reviewed-by: Benni Mack <benni@typo3.org>
Tested-by: Benni Mack <benni@typo3.org>