[TASK] Catch exception in record editing if current record is deleted

If an edit form is reloaded after the record has been deleted,
a message should be shown to the user instead of an exception.

Resolves: #83903
Releases: master, 8.7
Change-Id: Ib427ee8601a70c53d63f1afea7f1eacc71fd5da1
Reviewed-on: https://review.typo3.org/55730


Tested-by: TYPO3com <no-reply@typo3.com>
Reviewed-by: Jan Stockfisch <jan.stockfisch@googlemail.com>
Tested-by: Jan Stockfisch <jan.stockfisch@googlemail.com>
Reviewed-by: Sascha Rademacher <sascha.rademacher+typo3@gmail.com>
Reviewed-by: Joerg Boesche <typo3@joergboesche.de>
Tested-by: Joerg Boesche <typo3@joergboesche.de>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>