alastair/python-musicbrainz-ngs — comment on commit 7c9ed3e042ec5e0b33574ae6b7c34827c21e7b58
File: musicbrainz.py line 60
By JonnyJD:

So the parts of the query are joined with spaces, effectively being OR queries?
Is that intentional?

Yes, this is not the current version, but this is where it was introduced.