I don't know if this is intended behavior or not. For some reason I was in the Border Patrol mission at the same time as small skirmish in Deneb. I didn't actually take the small mission, but I ended up in it anyways.

My border patrol session ended at 6:21 game time (April 6).

We had a full group of eight for bp.

edit: this was the small skirm: https://www.vendetta-online.com/x/dwstats_b/80728

With the exception of the smurf, everyone there was doing border patrol.