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Description
I found different "labels" for the same thing...
at DCA onlyused for checkbox "Assigned values only" but we have "transition" to value $usedOnly
e.g.
https://github.com/MetaModels/core/blob/master/src/MetaModels/Filter/Setting/SimpleLookup.php#L103
to
https://github.com/MetaModels/core/blob/master/src/MetaModels/Attribute/BaseSimple.php#L87