Merge pull request vitalets#745 from ins429/dev

use strict eq(===) to check on the new value equals to the old value, vitalets#744

src/editable-form/editable-form.js

@@ -218,7 +218,7 @@ Editableform is linked with one of input types, e.g. 'text', 'select' etc.
 
             //if value not changed --> trigger 'nochange' event and return
             /*jslint eqeq: true*/
-            if (!this.options.savenochange && this.input.value2str(newValue) == this.input.value2str(this.value)) {
+            if (!this.options.savenochange && this.input.value2str(newValue) === this.input.value2str(this.value)) {
             /*jslint eqeq: false*/                
                 /**        
                 Fired when value not changed but form is submitted. Requires savenochange = false.

test/unit/text.js

@@ -576,6 +576,20 @@ $(function () {
         ok(p.find('input').length, 'input exists');
         equal(p.find('input').val(), 'qwe', 'default text not set as element not empty');
     });
-
+
+    test("should able to submit a value which changed 0 to ''(empty string)", function () {
+        var e = $('<a href="#" data-name="text1"></a>').appendTo('#qunit-fixture').editable({
+          value: '0'
+        });
+
+        //empty text
+        e.click();
+        var p = tip(e);
+        equal(p.find('input').val(), '0', 'text value is 0 ok');
+        p.find('input').val('');
+        p.find('form').submit(); 
+        e.click();
+        equal(p.find('input').val(), '', 'text changed to \'\' ok');
+    });
 
-});    
+});