TYPO3 Extbase: Undelete (restore) functionality

Simply adding a setDeleted() method and $deleted property to the Extbase domain model is not sufficient. You also have to add the deleted column to the table's TCA columns array.

Otherwise Extbase's "Persistence Backend" used by the domain repository will decide that the property is not isPersistableProperty(), and skip over it.

Links:

• https://stackoverflow.com/questions/79841935/extbase-domain-model-version-property-is-not-stored-in-database
• https://github.com/TYPO3-Documentation/TYPO3CMS-Reference-CoreApi/pull/6479