Yeah, the Unofficial guide says something about there being a tree in the way in front of gate 14? and 19? Maybe? or maybe it's 12 and 19. Anyway, supposedly they look like they're not manned, but the guide says that just before opening they WILL be manned, and that people will be waved over from gates 13 and 20 to fill up those lines which are short because of a tree in the way.
That's the theory, but it didn't look like that to me when we were there. The gates that were going to be open had a sign that said "Magic Morning" and each one had a line leading up to it. The lines were all the same length. But that was only one trip and I was pretty preoccupied, so if anybody has tested the Unofficial Guide theory and found it to work, I'd love to hear about it!