Fix typo in sync players logic

music_assistant/server/controllers/players.py

@@ -685,7 +685,7 @@ async def cmd_sync_many(self, target_player: str, child_player_ids: list[str]) -
         # forward command to the player provider after all (base) sanity checks
         player_provider = self.get_player_provider(target_player)
         async with self._player_throttlers[target_player]:
-            await player_provider.cmd_sync_many(target_player, child_player_ids)
+            await player_provider.cmd_sync_many(target_player, final_player_ids)
 
     @api_command("players/cmd/unsync_many")
     async def cmd_unsync_many(self, player_ids: list[str]) -> None:

music_assistant/server/providers/sonos/provider.py

@@ -188,8 +188,6 @@ async def cmd_sync(self, player_id: str, target_player: str) -> None:
     async def cmd_sync_many(self, target_player: str, child_player_ids: list[str]) -> None:
         """Create temporary sync group by joining given players to target player."""
         sonos_player = self.sonos_players[target_player]
-        # ensure we only send valid (and unique) player ids
-        child_player_ids = list({x for x in child_player_ids if x in self.sonos_players})
         await sonos_player.client.player.group.modify_group_members(
             player_ids_to_add=child_player_ids, player_ids_to_remove=[]
         )