chore: revert

Author: sxzz

packages/runtime-core/src/apiWatch.ts

@@ -378,18 +378,18 @@ function doWatch(
 
   const effect = new ReactiveEffect(getter, scheduler)
 
+  if (__DEV__) {
+    effect.onTrack = onTrack
+    effect.onTrigger = onTrigger
+  }
+
   const unwatch = () => {
     effect.stop()
     if (instance && instance.scope) {
       remove(instance.scope.effects!, effect)
     }
   }
 
-  if (__DEV__) {
-    effect.onTrack = onTrack
-    effect.onTrigger = onTrigger
-  }
-
   // initial run
   if (cb) {
     if (immediate) {