Ensures that domains assigned to non-published nodes are filtered when routing, ensures caches are cleared when content is deleted or langauges are changed, updates logic for dealing with null invariant content names, adds more validation for saving cultre variants.

src/Umbraco.Web.UI.Client/src/common/services/umbdataformatter.service.js

@@ -327,8 +327,8 @@
                 //get the selected variant and build the additional published variants
                 saveModel.publishVariations = [];
 
-                //if there's more than 1 variant than we need to set the language and include the variants to publish
-                if (displayModel.variants.length > 1) {
+                //if there's any variants than we need to set the language and include the variants to publish
+                if (displayModel.variants.length > 0) {
                     _.each(displayModel.variants,
                         function (d) {
                             //set the selected variant if this is current

src/Umbraco.Web.UI.Client/src/views/components/editor/umb-editor-header.html

@@ -50,7 +50,7 @@
                         server-validation-field="Alias">
                     </umb-generate-alias>
                     
-                    <a ng-if="variants.length > 1" class="umb-variant-switcher__toggle" href="" ng-click="vm.dropdownOpen = !vm.dropdownOpen">
+                    <a ng-if="variants.length > 0" class="umb-variant-switcher__toggle" href="" ng-click="vm.dropdownOpen = !vm.dropdownOpen">
                         <span>{{vm.currentVariant.language.name}}</span>
                         <ins class="umb-variant-switcher__expand" ng-class="{'icon-navigation-down': !vm.dropdownOpen, 'icon-navigation-up': vm.dropdownOpen}">&nbsp;</ins>
                     </a>