Fixes an issue where we skip calling callstats addNewFabric.
Fixes an issue where we skip calling callstats addNewFabric.

In case backend was initialized before creating our Callstats instance, we skip calling the callstats method addNewFabric.

nevermind-corp/ljm,jiyeyuran/lib-jitsi-meet,jitsi/lib-jitsi-meet,jitsi/lib-jitsi-meet,damencho/lib-jitsi-meet