Accept IDs of loaded relations in the raw membership editor (close #3487)
Accept IDs of loaded relations in the raw membership editor (close #3487)

openstreetmap/iD,openstreetmap/iD,openstreetmap/iD,morray/iD,kartta-labs/iD,kartta-labs/iD,kartta-labs/iD,digidem/iD,digidem/iD,morray/iD