Client lib: fix assertion in the qfs network protocol state machine, the connection pointer must not be null.
Client lib: fix assertion in the qfs network protocol state machine, the connection pointer must not be null.

qnu/qfs,chanwit/qfs,fengshao0907/qfs,quantcast/qfs,qnu/qfs,quantcast/qfs,fengshao0907/qfs,qnu/qfs,fengshao0907/qfs,chanwit/qfs,thebigbrain/qfs,qnu/qfs,fengshao0907/qfs,quantcast/qfs,chanwit/qfs,thebigbrain/qfs,thebigbrain/qfs,quantcast/qfs,thebigbrain/qfs,quantcast/qfs,chanwit/qfs,fengshao0907/qfs,qnu/qfs,chanwit/qfs,thebigbrain/qfs,chanwit/qfs,quantcast/qfs,chanwit/qfs,thebigbrain/qfs,fengshao0907/qfs,qnu/qfs,quantcast/qfs,qnu/qfs,fengshao0907/qfs,qnu/qfs,quantcast/qfs,fengshao0907/qfs,chanwit/qfs,thebigbrain/qfs,thebigbrain/qfs