Use BUGFIX for some inline fixes

src/frontier_pass.c

@@ -983,6 +983,9 @@ static void Task_HandleFrontierPassInput(u8 taskId)
                 SetMainCallback2(CB2_HideFrontierPass);
                 DestroyTask(taskId);
                 // BUG. The function should return here. Otherwise, it can play the same sound twice and destroy the same task twice.
+                #ifdef BUGFIX
+                return;
+                #endif
             }
         }