Pull request #3020: JSY-22136 内存无法回收

Merge in VISUAL/fineui from ~FAY/fineui:main to master

* commit 'f9422ec10492307b775b44cb690f556a3fa9ff6d':
  JSY-22136

src/core/4.widget.js

@@ -392,7 +392,7 @@
          */
         _mount: function (force, deep, lifeHook, predicate, layer) {
             var self = this;
-            if (!force && (this._isMounted || !this.isVisible() || this.__asking === true || !(this._isRoot === true || (this._parent && this._parent._isMounted === true)))) {
+            if (!force && (this._isMounted || this.__asking === true || !(this._isRoot === true || (this._parent && this._parent._isMounted === true)))) {
                 return false;
             }
             layer = layer || 0;