conference: remoteStream.ended can not trigger when server side close network

[zhangyihui1]

1: android join room 2: android publish localStream to mcu 3: android subscribe self forward stream 4: close server side network

expect: android side want to trigger remoteStream.ended, publication.ended, publication.error, subscription.ended , subscription.error, onServerDisconnect

actual: android side can not trigger remoteStream.ended