I understand that it is the client itself which ceases to request new work if there is a certain number of pending uploads of a given project.
The server OTOH would not assign new tasks if a host's number of tasks in progress exceeds a certain limit. Similar effect, but as things are currently going, the mentioned client-side limit is more probable to kick in.
I on the other hand have enough tasks for the rest of the contest, loaded before the Obstacle day. Well, actually it's less than "enough" in terms of remaining computing time, because it's pretty certain that there won't be very much opportunity for uploads anymore before the contest ends.