[BUGFIX] Catch exception editing record with deleted relation

Editing a record with a deleted related record leads to an uncaught
DatabaseRecordException. This patch catches the exception and
ignores such records, but logs a warning.

Due to possible errors occurring with certain DBMS (e.g. MySQL
strict) columns may require a default value now in TCA.

Resolves: #83412
Releases: master, 8.7, 7.6
Change-Id: I5adaf385443350ce245dd83da6e5f1a16d9c9afb
Reviewed-on: https://review.typo3.org/55752


Tested-by: TYPO3com <no-reply@typo3.com>
Reviewed-by: Andreas Fernandez <a.fernandez@scripting-base.de>
Reviewed-by: Sascha Rademacher <sascha.rademacher+typo3@gmail.com>
Tested-by: Andreas Fernandez <a.fernandez@scripting-base.de>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>