another emerald UB

src/wireless_communication_status_screen.c

@@ -381,6 +381,13 @@ static u32 CountPlayersInGroupAndGetActivity(struct RfuPlayer * player, u32 * gr
 
     for (i = 0; i < ARRAY_COUNT(sActivityGroupInfo); i++)
     {
+#ifdef UBFIX
+        // GROUPTYPE_NONE is 0xFF, and shouldn't be used as an index into groupCounts.
+        // In theory the only activity with this group type (ACTIVITY_SEARCH) wouldn't
+        // satisfy the condition below, but not necessarily.
+        if (group_type(i) == GROUPTYPE_NONE)
+            continue;
+#endif
         if (activity == group_activity(i) && player->groupScheduledAnim == UNION_ROOM_SPAWN_IN)
         {
             if (group_players(i) == 0)