fix: jicofo_lock is null when restored from storage (#13517)

* Fix jicofo_lock is null when restored from storage

* revert

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Co-authored-by: hshim432 <hshimizusv@gmail.com>

resources/prosody-plugins/mod_muc_meeting_id.lua

     local room, stanza = event.room, event.stanza;
 
     -- we skip processing only if jicofo_lock is set to false
-    if room.jicofo_lock == false or is_healthcheck_room(stanza.attr.from) then
+    if room._data.jicofo_lock == false or is_healthcheck_room(stanza.attr.from) then
         return;
     end
 
     if ends_with(occupant.nick, '/focus') then
         module:fire_event('jicofo-unlock-room', { room = room; });
     else
-        room.jicofo_lock = true;
+        room._data.jicofo_lock = true;
         if not room.pre_join_queue then
             room.pre_join_queue = queue.new(QUEUE_MAX_SIZE);
         end
 function handle_jicofo_unlock(event)
     local room = event.room;
 
-    room.jicofo_lock = false;
+    room._data.jicofo_lock = false;
     if not room.pre_join_queue then
         return;
     end