When i retrieve information about an artist i don't get the full data correctly.

If i do:

https://musicbrainz.org/ws/2/artist/7dc8f5bd-9d0b-4087-9f73-dc164950bbd8?inc=aliases+artist-rels+place-rels+event-rels+series-rels&fmt=json

none of the events have a beginning or end

Even though if I ask for the same in XML:

https://musicbrainz.org/ws/2/artist/7dc8f5bd-9d0b-4087-9f73-dc164950bbd8?inc=aliases+artist-rels+place-rels+event-rels+series-rels

then they do.