Varsity Girls. I couldn't actually hear on this, so I'm just going from what I got second hand, and what I could see from the stands.
Play is stopped. A1 has blood on jersey, ref tells her to change it.
Coach A calls time out, A1 grabs a spare jersey and is now A45. She had a tank top underneath, and changes at the bench. You probably know what's coming now.
The other two refs confer, then all three get together, T on A1. No one around me could figure out what was going on, I knew it from this great forum. No stripping on the court.

I was tempted to make a girls gone wild joke, but wasn't sure how it would be received.
My question, while this rule is probably more common on the boys side, it probably is pretty rare on the girls side. As a ref, would you let the player know they have to leave the gym to change jerseys? It had no effect on the game, it was a blowout.