Annoying Fleet Thing

not sure if this has been commented elsewhere.

Has anyone had the problem, where ships decide that since they can't take part in a battle, they will retreat and break up the fleet?

I had one transport decide to flee in a battle where my huge fleet was pounding a single wounded frigate. It took the "fleet" so I had a fleet of one ship escaping, and a pile of unfleeted ships in the battle area, requiring me to reorganize.

There ought to be a difference between a ship thinking "I am no use, I'll stay out of the way, but remain in the sector" and it thinking "I'm no use, I shall run to the nearest asteroid and hide!" Perhaps where a ship is in a fleet, it should only retreat when the whole fleet does?

I expect someone will tell me there's a setting to make this so, but I have not found it.