fix(app-plus-nvue): targetStack

packages/vue-cli-plugin-uni/packages/mp-vue/dist/mp.runtime.esm.js

@@ -737,16 +737,16 @@ Dep.prototype.notify = function notify () {
 /* eslint-disable no-undef */
 Dep.SharedObject = typeof SharedObject !== 'undefined' ? SharedObject : {};
 Dep.SharedObject.target = null;
-var targetStack = [];
+Dep.SharedObject.targetStack = [];
 
 function pushTarget (target) {
-  targetStack.push(target);
+  Dep.SharedObject.targetStack.push(target);
   Dep.SharedObject.target = target;
 }
 
 function popTarget () {
-  targetStack.pop();
-  Dep.SharedObject.target = targetStack[targetStack.length - 1];
+  Dep.SharedObject.targetStack.pop();
+  Dep.SharedObject.target = Dep.SharedObject.targetStack[Dep.SharedObject.targetStack.length - 1];
 }
 
 /*  */