I had to import a few posts from one TYPO3 site into another, which lead into some exploring of the DB structure. A specific question arose:
In localised content elements (tt_content entries with sys_language_uid = 1), the fields
l18n_parent are redundantly filled.
l18n_parent is required for the backend localisation view to work.
Do they always have the same value? Or is there a use case where the values of the fields can differ?