NNIS-5073 do not delete “realName”

.gitignore

+*~
+.DS_Store
+.idea
\ No newline at end of file

AuthRemoteuser.body.php

@@ -156,8 +156,6 @@ class AuthRemoteuser extends MediaWiki\Session\ImmutableSessionProviderWithCooki
 
         if ($wgAuthRemoteuserName) {
             $user->setRealName($wgAuthRemoteuserName);
-        } else {
-            $user->setRealName('');
         }
     }
 
@@ -181,7 +179,7 @@ class AuthRemoteuser extends MediaWiki\Session\ImmutableSessionProviderWithCooki
                     "", $username);
             }
         } else {
-            $username = "";
+            $username = null;
         }
 
         return $username;

extension.json

 {
   "name": "AuthRemoteuser",
   "namemsg": "authremoteuser-extensionname",
-  "version": "1.3.1",
+  "version": "1.3.2",
   "author": ["Otheus Shelling", "Rusty Burchfield", "James Kinsman", "Daniel Thomas", "Ian Ward Comfort", "[[mw:User:MarkAHershberger|Mark A. Hershberger]]", "Jonas Gröger", "Andreas Fink"],
   "url": "https://www.mediawiki.org/wiki/Extension:AuthRemoteuser",
   "descriptionmsg": "authremoteuser-desc",