Fixed a bug whereby chatstates were disable incorrectly with the following scenario:

client #1: send client #2 a message (state is ask)
client #2: recv's message and set's chatstate active since the message used JEP 85
client #1: sends another message, but since client #2 has not responded yet it sends not chatstate
client #2: recv's message and set's chatstate to False because JEP 85 was not used
(Note, if client #2 would have responded after the first message chatstates would be in effect.