BI-73305 fix: single销毁的时候title没有移除

src/base/single/single.js

@@ -200,12 +200,11 @@ BI.Single = BI.inherit(BI.Widget, {
         return this.options.value;
     },
 
-    _unMount: function () {
+    destroyed: function () {
-        BI.Single.superclass._unMount.apply(this, arguments);
         if (BI.isNotNull(this.showTimeout)) {
             clearTimeout(this.showTimeout);
             this.showTimeout = null;
         }
         BI.Tooltips.remove(this.getName());
-    }
+    },
 });

src/core/widget.js

@@ -486,6 +486,7 @@
         destroy: function () {
             this.__d();
             this.element.destroy();
+            this.fireEvent(BI.Events.UNMOUNT);
             this.fireEvent(BI.Events.DESTROY);
             this._purgeRef();
             this.purgeListeners();