2 methods override DefaultSelection::validateReferenceableNewEntities()

FileSelection::validateReferenceableNewEntities in core/modules/file/src/Plugin/EntityReferenceSelection/FileSelection.php: Validates which newly created entities can be referenced.
MediaSelection::validateReferenceableNewEntities in core/modules/media/src/Plugin/EntityReferenceSelection/MediaSelection.php: Validates which newly created entities can be referenced.

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