"New changes to swapping Pokemon?"

#PokemonGO: I may have just discovered something, but it may also be nothing...I was battling with a Pokemon and it only had 1/4 of health left, so I switch him out for the Pokemon in the second postion.The fought with second Pokemon and that fainted and previously the game would put in the first Pokemon with it's low health, but it didn't, it put the third one in.I had to go, so I wasn't able to test this at any other gyms.Has anyone else noticed this or was this changed a long time ago? via /r/TheSilphRoad http://ift.tt/2r24FXF