After the page is created, open

packages/app/src/components/Sidebar/PageTree/Item.tsx

@@ -341,10 +341,6 @@ const Item: FC<ItemProps> = (props: ItemProps) => {
     }
 
     try {
-      if (!hasDescendants) {
-        setIsOpen(true);
-      }
-
       setCreating(true);
 
       await apiv3Post('/pages/', {
@@ -359,6 +355,10 @@ const Item: FC<ItemProps> = (props: ItemProps) => {
 
       mutateChildren();
 
+      if (!hasDescendants) {
+        setIsOpen(true);
+      }
+
       toastSuccess(t('successfully_saved_the_page'));
     }
     catch (err) {