See [1] for an example:

Active:
present - 1995

"present" should instead be a question mark ("?").

Also occurs with labels [2].

On a related note, shouldn't "present" be capitalised?

[1] http://musicbrainz.org/artist/ed0c2410-784d-489e-864e-17c3ebeffd7d
[2] http://test.musicbrainz.org/edit/14459983