Pull request #3609: BI-129683 fix: 【6.0.12发散】文本下拉过滤组件绑定参数全选之后，全选按钮为半选导致取消勾选全选不能生效

Merge in VISUAL/fineui from ~DAILER/fineui:master to master

* commit 'f64efbdc301ec40dbcc216e1e1f3cfe413687a80':
  BI-129683 fix: 【6.0.12发散】文本下拉过滤组件绑定参数全选之后，全选按钮为半选导致取消勾选全选不能生效

packages/fineui/src/widget/multiselect/loader.js

@@ -80,7 +80,7 @@ export class MultiSelectInnerLoader extends Widget {
         }
         o.itemsCreator.apply(this, [
             { times: ++this.times },
-            function () {
+            function() {
                 self.next.setLoaded();
                 self.addItems(...arguments);
             }
@@ -105,7 +105,7 @@ export class MultiSelectInnerLoader extends Widget {
             ],
             value: o.value,
         });
-        this.button_group.on(Controller.EVENT_CHANGE, function (type, value, obj) {
+        this.button_group.on(Controller.EVENT_CHANGE, function(type, value, obj) {
             if (type === Events.CLICK) {
                 const node = self.cachGroup.getNodeByValue(value);
                 if (node) {
@@ -158,12 +158,12 @@ export class MultiSelectInnerLoader extends Widget {
         });
 
         o.isDefaultInit &&
-            isEmpty(o.items) &&
-            nextTick(
-                bind(function () {
-                    o.isDefaultInit && isEmpty(o.items) && this._populate();
-                }, this)
-            );
+        isEmpty(o.items) &&
+        nextTick(
+            bind(function() {
+                o.isDefaultInit && isEmpty(o.items) && this._populate();
+            }, this)
+        );
     }
 
     hasNext() {
@@ -221,7 +221,7 @@ export class MultiSelectInnerLoader extends Widget {
         if (arguments.length === 0 && isFunction(o.itemsCreator)) {
             o.itemsCreator.apply(this, [
                 { times: 1 },
-                function (items, keyword) {
+                function(items, keyword) {
                     if (arguments.length === 0) {
                         throw new Error("object already registered");
                     }
@@ -289,11 +289,11 @@ export class MultiSelectInnerLoader extends Widget {
     }
 
     getAllButtons() {
-        return this.button_group.getAllButtons();
+        return this.cachGroup.getAllButtons();
     }
 
     getAllLeaves() {
-        return this.button_group.getAllLeaves();
+        return this.cachGroup.getAllLeaves();
     }
 
     getSelectedButtons() {