Fix saving content not updating the page (#12108)

* Fix relation type tests

* Fix saving content not updating the UI

We have to map to display after we've saved content or we'll be missing information generated when saving content such as ID

* Dont map to display to get isBlueprint

Author: nikolajlauridsen

src/Umbraco.Web.BackOffice/Controllers/ContentController.cs

@@ -821,8 +821,7 @@ private async Task<ActionResult<ContentItemDisplay>> PostSaveInternal(ContentIte
                 defaultCulture);
 
             //get the updated model
-            var display = mapToDisplay(contentItem.PersistedContent);
-            bool isBlueprint = display.IsBlueprint;
+            bool isBlueprint = contentItem.PersistedContent.Blueprint;
 
             var contentSavedHeader = isBlueprint ? "editBlueprintSavedHeader" : "editContentSavedHeader";
             var contentSavedText = isBlueprint ? "editBlueprintSavedText" : "editContentSavedText";
@@ -922,6 +921,9 @@ private async Task<ActionResult<ContentItemDisplay>> PostSaveInternal(ContentIte
                     throw new ArgumentOutOfRangeException();
             }
 
+            // We have to map do display after we've actually saved the content, otherwise we'll miss information that's set when saving content, such as ID
+            var display = mapToDisplay(contentItem.PersistedContent);
+
             //merge the tracked success messages with the outgoing model
             display.Notifications.AddRange(globalNotifications.Notifications);
             foreach (var v in display.Variants.Where(x => x.Language != null))

tests/Umbraco.Tests.AcceptanceTest/cypress/integration/Settings/relationTypes.ts

@@ -25,6 +25,8 @@ context('Relation Types', () => {
       cy.get('select[name="relationType-parent"]').select('Document');
 
       cy.get('select[name="relationType-child"]').select('Media');
+      
+      cy.get('[name="relationType-isdependency"]').last().click({force: true})
 
       cy.get(".btn-primary").click();
     });