BI-63192 fix: 修复multi_select_list初始化两次itemsCreator的问题

src/widget/multiselectlist/multiselectlist.insert.js

@@ -46,9 +46,12 @@ BI.MultiSelectInsertList = BI.inherit(BI.Single, {
                 return self.trigger.getKeyword();
             },
             itemsCreator: function (op, callback) {
-                op.keywords = [self.trigger.getKeyword()];
+                var keyword = self.trigger.getKeyword();
+                if (BI.isNotEmptyString(keyword)) {
+                    op.keywords = [keyword];
                     this.setKeyword(op.keywords[0]);
                     o.itemsCreator(op, callback);
+                }
             },
             listeners: [{
                 eventName: BI.MultiSelectSearchInsertPane.EVENT_ADD_ITEM,

src/widget/multiselectlist/multiselectlist.insert.nobar.js

@@ -52,9 +52,12 @@ BI.MultiSelectInsertNoBarList = BI.inherit(BI.Single, {
                 return self.trigger.getKeyword();
             },
             itemsCreator: function (op, callback) {
-                op.keywords = [self.trigger.getKeyword()];
+                var keyword = self.trigger.getKeyword();
+                if (BI.isNotEmptyString(keyword)) {
+                    op.keywords = [keyword];
                     this.setKeyword(op.keywords[0]);
                     o.itemsCreator(op, callback);
+                }
             },
             listeners: [{
                 eventName: BI.MultiSelectSearchInsertPane.EVENT_ADD_ITEM,

src/widget/multiselectlist/multiselectlist.js

@@ -50,10 +50,13 @@ BI.MultiSelectList = BI.inherit(BI.Widget, {
                 return self.trigger.getKeyword();
             },
             itemsCreator: function (op, callback) {
-                op.keywords = [self.trigger.getKeyword()];
+                var keyword = self.trigger.getKeyword();
+                if (BI.isNotEmptyString(keyword)) {
+                    op.keywords = [keyword];
                     this.setKeyword(op.keywords[0]);
                     o.itemsCreator(op, callback);
                 }
+            }
         });
         this.searcherPane.setVisible(false);