Validate erroneously saying that there are no more labels to validate

[misaugstad]

It seems like Validate is sometimes giving the "no more missions available" screen when there are, in fact, plenty of labels left to validate. We have a user in Teaneck who has done a few thousand validations, and they said that they've been seeing that screen lately, but I've checked the db, and they should have a few thousand more available to them.

My guess is that one part of our code thinks that there are enough labels of a specific label type to validate, but then we aren't finding enough labels of that type, and so we're showing the message that there aren't enough labels to validate in general... Though I did try to quickly recreate the queries that would have been used here and ran them directly on the db and didn't see a place where this would have been an issue.

It also seems like it's probably only happening on subsequent missions, not the first. But I'll ask for more info there.