Merge pull request #2375 from redmorello/U4-10762

U4-10762 Fix issue with empty name when registering new members from …

src/Umbraco.Web/Controllers/UmbRegisterController.cs

@@ -1,11 +1,7 @@
 using System;
-using System.Linq;
 using System.Web.Mvc;
 using System.Web.Security;
-using umbraco.BusinessLogic;
-using umbraco.cms.businesslogic.member;
 using Umbraco.Core;
-using Umbraco.Core.Security;
 using Umbraco.Web.Models;
 using Umbraco.Web.Mvc;
 
@@ -21,6 +17,13 @@ namespace Umbraco.Web.Controllers
                 return CurrentUmbracoPage();
             }
 
+            // U4-10762 Server error with "Register Member" snippet (Cannot save member with empty name)
+            // If name field is empty, add the email address instead
+            if (string.IsNullOrEmpty(model.Name) && string.IsNullOrEmpty(model.Email) == false)
+            {
+                model.Name = model.Email;
+            }
+
             MembershipCreateStatus status;
             var member = Members.RegisterMember(model, out status, model.LoginOnSuccess);
             
@@ -36,7 +39,6 @@ namespace Umbraco.Web.Controllers
                         return Redirect(model.RedirectUrl);
                     }
                     //redirect to current page by default
-                    
                     return RedirectToCurrentUmbracoPage();
                 case MembershipCreateStatus.InvalidUserName:
                     ModelState.AddModelError((model.UsernameIsEmail || model.Username == null)