[DB][FKEY] Temporarily disable foreign key mapping, as there seems to be a bug in doctrine, which is under investigation

src/DependencyInjection/Compiler/SchemaDefDriver.php

@@ -109,7 +109,7 @@ class SchemaDefDriver extends StaticPHPDriver implements CompilerPassInterface
                 }
             }
 
-            if ($opts['foreign key'] ?? false) {
+            if (false && $opts['foreign key'] ?? false) {
                 foreach (['target', 'multiplicity'] as $f) {
                     if (!isset($opts[$f])) {
                         throw new \Exception("{$class_name}.{$name} doesn't have the required field `{$f}`");

src/Util/Common.php

@@ -91,7 +91,7 @@ abstract class Common
 
     public static function userNickname(): ?string
     {
-        self::ensureLoggedIn()->getNickname();
+        return self::ensureLoggedIn()->getNickname();
     }
 
     public static function ensureLoggedIn(): LocalUser