bug: source loaded twice if sourceCache = true

src/inputs/checklist.js

@@ -32,6 +32,9 @@ $(function(){
     $.extend(Checklist.prototype, {
         renderList: function() {
             var $label, $div;
+            
+            this.$tpl.empty();
+            
             if(!$.isArray(this.sourceData)) {
                 return;
             }

src/inputs/list.js

@@ -17,8 +17,6 @@ List - abstract class for inputs that have source option loaded from js array or
             var deferred = $.Deferred();
 
             this.error = null;
-            this.sourceData = null;
-            this.prependData = null;
             this.onSourceReady(function () {
                 this.renderList();
                 deferred.resolve();

src/inputs/select.js

@@ -30,12 +30,14 @@ $(function(){
 
     $.extend(Select.prototype, {
         renderList: function() {
+            this.$input.empty();
+            
             if(!$.isArray(this.sourceData)) {
                 return;
             }
 
             for(var i=0; i<this.sourceData.length; i++) {
-                this.$tpl.append($('<option>', {value: this.sourceData[i].value}).text(this.sourceData[i].text)); 
+                this.$input.append($('<option>', {value: this.sourceData[i].value}).text(this.sourceData[i].text)); 
             }
             
             this.setClass();