ok, properly fixes dirty tracking on the tags editor

src/Umbraco.Web.UI.Client/src/common/directives/components/tags/umbtagseditor.directive.js

@@ -55,7 +55,7 @@
                 vm.isLoading = false;
 
                 //ensure that the models are formatted correctly
-                configureViewModel();
+                configureViewModel(true);
 
                 // Set the visible prompt to -1 to ensure it will not be visible
                 vm.promptIsVisible = "-1";
@@ -140,17 +140,8 @@
             if (changes.value) {
                 if (!changes.value.isFirstChange() && changes.value.currentValue !== changes.value.previousValue) {
 
-                    if (initLoad) {
-                        //this occurs if we have to re-format the model on the init load, so set the flag to false
-                        //so the next time it actually changes we process it.
-                        initLoad = false;
-                        //we need to reset the form since it actually hasn't changed but it will be detected as changed
-                        vm.tagEditorForm.$setPristine();
-                    }
-                    else {
-                        configureViewModel();
-                        reValidate();
-                    }
+                    configureViewModel();
+                    reValidate();
                 }
             }
         }
@@ -164,14 +155,19 @@
             $element.find('.tags-' + vm.htmlId).typeahead('destroy');
         }
 
-        function configureViewModel() {
+        function configureViewModel(isInitLoad) {
             if (vm.value) {
                 if (angular.isString(vm.value) && vm.value.length > 0) {
                     if (vm.config.storageType === "Json") {
                         //json storage
                         vm.viewModel = JSON.parse(vm.value);
-                        updateModelValue(vm.viewModel);
-                        return;
+
+                        //if this is the first load, we are just re-formatting the underlying model to be consistent
+                        //we don't want to notify the component parent of any changes, that will occur if the user actually
+                        //changes a value. If we notify at this point it will signal a form dirty change which we don't want.
+                        if (!isInitLoad) {
+                            updateModelValue(vm.viewModel);
+                        }
                     }
                     else {
                         //csv storage
@@ -185,16 +181,18 @@
                             return self.indexOf(v) === i;
                         });
 
-                        updateModelValue(vm.viewModel);
-                        return;
+                        //if this is the first load, we are just re-formatting the underlying model to be consistent
+                        //we don't want to notify the component parent of any changes, that will occur if the user actually
+                        //changes a value. If we notify at this point it will signal a form dirty change which we don't want.
+                        if (!isInitLoad) {
+                            updateModelValue(vm.viewModel);
+                        }
                     }
                 }
                 else if (angular.isArray(vm.value)) {
                     vm.viewModel = vm.value;
                 }
             }
-            //if we've made it here we haven't had to re-format the model so we'll set this to false
-            initLoad = false;
         }
 
         function updateModelValue(val) {