Sync with Kendo UI Professional

Author: Kendo Bot

src/kendo.list.js

@@ -747,7 +747,8 @@ var __meta__ = { // jshint ignore:line
                 value = optionValue;
             }
 
-            if (value !== unifyType(that._old, typeof value)) {
+            if (value !== unifyType(that._old, typeof value) &&
+                value !== unifyType(that._oldText, typeof value)) { // _oldText should be compared for ComboBox when arbitrary text is added https://github.com/telerik/kendo-ui-core/issues/4496
                 trigger = true;
             } else if (that._valueBeforeCascade !== undefined && that._valueBeforeCascade !== unifyType(that._old, typeof that._valueBeforeCascade) && that._userTriggered) {
                 trigger = true;
@@ -766,6 +767,8 @@ var __meta__ = { // jshint ignore:line
                     }
                 }
                 that._oldIndex = index;
+                // _oldText should be compared for ComboBox when arbitrary text is added https://github.com/telerik/kendo-ui-core/issues/4496
+                that._oldText = that.text && that.text();
 
                 if (!that._typing) {
                     // trigger the DOM change event so any subscriber gets notified

tests/combobox/events.js

@@ -173,6 +173,27 @@ it("change should not be raised on tab after already changed value", function()
     combobox.input.focusout();
 });
 
+it("change should not be raised twice on tab after edits of arbitrary text", function() {
+    var counter = 0;
+
+    combobox = new ComboBox(input, {
+        dataSource: [],
+        change: function() {
+            counter++;
+        }
+    });
+
+    for (var i = 0; i < 2; i++) {
+        combobox.input.focus();
+        combobox.input.val(i);
+        combobox.input.press(kendo.keys.ENTER);
+        combobox.input.press(kendo.keys.TAB);
+        combobox.input.focusout();
+    }
+
+    assert.equal(counter, 2);
+});
+
 it("_change raises change event if selectedIndex has changed", function() {
     var select = $("<select/>");