update

src/component/allvaluechooser/combo.allvaluechooser.js

@@ -61,7 +61,9 @@ BI.AllValueChooserCombo = BI.inherit(BI.AbstractAllValueChooser, {
 
     populate: function (items) {
         // 直接用combo的populate不会作用到AbstractValueChooser上
-        this.items = items;
+        if (BI.isNotNull(items)) {
+            this.items = items;
+        }
         this.combo.populate();
     }
 });

src/component/allvaluechooser/pane.allvaluechooser.js

@@ -58,7 +58,9 @@ BI.AllValueChooserPane = BI.inherit(BI.AbstractAllValueChooser, {
 
     populate: function (items) {
         // 直接用combo的populate不会作用到AbstractValueChooser上
-        this.items = items;
+        if (BI.isNotNull(items)) {
+            this.items = items;
+        }
         this.list.populate();
     }
 });

src/component/valuechooser/combo.valuechooser.insert.js

@@ -88,7 +88,9 @@ BI.ValueChooserInsertCombo = BI.inherit(BI.AbstractValueChooser, {
 
     populate: function (items) {
         // 直接用combo的populate不会作用到AbstractValueChooser上
-        this.items = items;
+        if (BI.isNotNull(items)) {
+            this.items = items;
+        }
         this.combo.populate();
     }
 });

src/component/valuechooser/combo.valuechooser.js

@@ -92,7 +92,9 @@ BI.ValueChooserCombo = BI.inherit(BI.AbstractValueChooser, {
 
     populate: function (items) {
         // 直接用combo的populate不会作用到AbstractValueChooser上
-        this.items = items;
+        if (BI.isNotNull(items)) {
+            this.items = items;
+        }
         this.combo.populate();
     }
 });

src/component/valuechooser/pane.valuechooser.js

@@ -60,7 +60,9 @@ BI.ValueChooserPane = BI.inherit(BI.AbstractValueChooser, {
 
     populate: function (items) {
         // 直接用combo的populate不会作用到AbstractValueChooser上
-        items && (this.items = items);
+        if (BI.isNotNull(items)) {
+            this.items = items;
+        }
         this.list.populate();
     }
 });