[FOLLOWUP][TASK] Enhance DataHandler translation and synchronization handling

Copying a page translation having an 1:n monoglot inline relation leads
to an SQL error which is silently put to sys_log in DataHandler. Besides
that, the inline children are superfluously duplicated since there is no
connection between those copied records anymore.

Resolves: #79856
Releases: master
Change-Id: Ife5cfdea1c1d9dff764ea3d28e0a35a83d5919e1
Reviewed-on: https://review.typo3.org/51784


Reviewed-by: Morton Jonuschat <m.jonuschat@mojocode.de>
Tested-by: Morton Jonuschat <m.jonuschat@mojocode.de>
Tested-by: TYPO3com <no-reply@typo3.com>
Reviewed-by: Oliver Hader <oliver.hader@typo3.org>
Tested-by: Oliver Hader <oliver.hader@typo3.org>