Multiple CFS users! What happens when you power cycle a

I have just two CFS and should I have an unfortunate event where I am printing from CFS 2 and have to power cycle I instantly regret it because during power up the fist CFS decides that it wants to auto feed every single reel to the extruder where it can’t because the buffer is occupied by the filament from the 2nd CFS so it proceeds to grind the absolute crap out of the filaments till it gives up.

This is about 1 foot into the filament so I have to remove the feed and cut it out before I have miss feed issuses.