null value for select not trigger source load

CHANGELOG.txt

@@ -4,6 +4,7 @@ X-editable changelog
 
 Version 1.3.1 wip
 ---------------------------- 
+[enh] if new value for select is 'null' source should not load (vitalets) 
 [enh #53] 'name' no more appended to source defined as url (vitalets) 
 [enh #46] move 'img' dir outside 'css' (vitalets) 
 [enh #48] fix handling of newlines in textarea input (jmfontaine) 

src/inputs/list.js

@@ -35,19 +35,23 @@ List - abstract class for inputs that have source option loaded from js array or
         },
         
         value2html: function (value, element, display) {
-            var deferred = $.Deferred();
-            this.onSourceReady(function () {
-                if(typeof display === 'function') {
-                    //custom display method
-                    display.call(element, value, this.sourceData); 
-                } else {
-                    this.value2htmlFinal(value, element);
-                }
-                deferred.resolve();
-            }, function () {
-                //do nothing with element
-                deferred.resolve();
-            });
+            var deferred = $.Deferred(),
+                success = function () {
+                    if(typeof display === 'function') {
+                        //custom display method
+                        display.call(element, value, this.sourceData); 
+                    } else {
+                        this.value2htmlFinal(value, element);
+                    }
+                    deferred.resolve();
+               };
+            
+            //for null value just call success without loading source
+            if(value === null) {
+               success.call(this);   
+            } else {
+               this.onSourceReady(success, function () { deferred.resolve(); });
+            }
 
             return deferred.promise();
         },  

test/unit/select.js

@@ -596,7 +596,34 @@ $(function () {
            e.remove();    
            start(); 
         }, timeout);           
-    })       
+    });
+    
+    
+    asyncTest("set value to null should not trigger source load", function () {
+        var req = 0;
+        $.mockjax({
+                url: 'groups-null.php',
+                response: function() {
+                    req++;
+                }
+         });  
+
+        var e = $('<a href="#" data-type="select" data-pk="1" data-name="name1" data-value="1" data-url="post.php" data-source="groups-null.php">11</a>').appendTo(fx).editable(),
+        d = e.data('editable');
+        
+        e.editable('setValue', null);
+           
+      setTimeout(function() {
+            equal(req, 0, 'no request');
+            equal(e.text(), d.options.emptytext, 'text correct');
+            equal(d.value, null, 'value correct');
+            
+            e.remove();    
+            start();  
+       }, timeout);
+        
+     });     
+     
           
      
 });