Fix bad API behavior

app/Http/Requests/Api/Application/Users/UpdateUserRequest.php

@@ -6,36 +6,16 @@ use Pterodactyl\Models\User;
 
 class UpdateUserRequest extends StoreUserRequest
 {
-    /**
-     * Determine if the requested user exists on the Panel.
-     *
-     * @return bool
-     */
-    public function resourceExists(): bool
-    {
-        $user = $this->route()->parameter('user');
-
-        return $user instanceof User && $user->exists;
-    }
-
     /**
      * Return the validation rules for this request.
      *
+     * @param array|null $rules
      * @return array
      */
-    public function rules(): array
+    public function rules(array $rules = null): array
     {
-        $userId = $this->route()->parameter('user')->id;
+        $userId = $this->getModel(User::class)->id;
 
-        return collect(User::getUpdateRulesForId($userId))->only([
-            'external_id',
-            'email',
-            'username',
-            'name_first',
-            'name_last',
-            'password',
-            'language',
-            'root_admin',
-        ])->toArray();
+        return parent::rules(User::getUpdateRulesForId($userId));
     }
 }