During the step that searches the category lists to assign categories to preprints that have already been recorded, the crawler currently exists completely if it finds a paper in this list that it doesn't already know about. This was done to make it more obvious that something fishy was going on—if it finds a bunch of known papers in a category and THEN an unrecognized paper, this is indeed fishy. However, if the first few papers in a category haven't been recorded yet, this isn't actually a problem—they'll be picked up on the next run. We should allow unrecognized papers at the beginning of a category.
During the step that searches the category lists to assign categories to preprints that have already been recorded, the crawler currently exists completely if it finds a paper in this list that it doesn't already know about. This was done to make it more obvious that something fishy was going on—if it finds a bunch of known papers in a category and THEN an unrecognized paper, this is indeed fishy. However, if the first few papers in a category haven't been recorded yet, this isn't actually a problem—they'll be picked up on the next run. We should allow unrecognized papers at the beginning of a category.