As per AREQ-3830 the area https://musicbrainz.org/area/4a2c986f-00da-4380-ac87-7c34aa098ddd is part of changed. I set the old one as ended (seemed fair enough to keep it if we had it already) but now it is showing "Municipality in Daegu, Gyeongsangbukdo, South Korea" - both the new parent area and the old one are shown together in the containment. We should ignore ended relationships when calculating containment.