chat state is shown in all rooms
if use is in several MUC room and somebody is writting on an other room, chat state is show everywhere.
e.g. profile test is on MUC rooms A, B and C, and its contacts toto is on rooms A and B.
if test is currently viewing chat room A, and toto is writing something on chat room B triggering chat states, the state is also shown as "composing" on room A, while is should be only visible on room B.