Fix crashes in addRemoteCandidate when subscriber is not removed from publisher (#1227)
Fix crashes in addRemoteCandidate when subscriber is not removed from publisher (#1227)


lynckia/licode,yangjinecho/licode,jcague/licode,lodoyun/licode,lynckia/licode,lodoyun/licode,yangjinecho/licode,jcague/licode,yangjinecho/licode,lynckia/licode,yangjinecho/licode,lynckia/licode,yangjinecho/licode,lodoyun/licode,lodoyun/licode,jcague/licode,jcague/licode,lodoyun/licode,lynckia/licode,yangjinecho/licode,lodoyun/licode,jcague/licode,lynckia/licode,jcague/licode,yangjinecho/licode,yangjinecho/licode,lodoyun/licode,lynckia/licode,jcague/licode