We already have the possibility to duplicate a Media.
Let's also allow to duplicate a POI.
[X] Frontend - example: https://beta.atlas.landscapefor.eu/poi-duplicate.php?poi_ID=18972
[X] copy POI basic fields
[X] deep-copy the thumbnail (so if you delete the new POI, you do not delete the old POI's thumbnail)
[X] inherit all language-based fields
[X] inherit related Medias
[X] add quick action from POI edit page (footer)
[X] inherit Archives
[X] inherit related POIs
[ ] inherit related Tags
[ ] ...
TO BE UNDERSTOOD:
[ ] inherit permissions - is it useful?