Issue #3370056 by jurgenhaas, JeroenT: TypeError:...

Issue #3370056 by jurgenhaas, JeroenT: TypeError: Drupal\role_delegation\Access\RoleDelegationAccessCheck::access(): Argument #1 ($account) must be of type Drupal\Core\Session\AccountInterface, null given

src/Access/RoleDelegationAccessCheck.php

@@ -33,13 +33,17 @@ class RoleDelegationAccessCheck implements AccessInterface {
   /**
    * Custom access check for the /user/%/roles page.
    *
-   * @param \Drupal\Core\Session\AccountInterface $account
+   * @param \Drupal\Core\Session\AccountInterface|null $account
    *   Run access checks for this account.
    *
    * @return \Drupal\Core\Access\AccessResultInterface
    *   The access result.
    */
-  public function access(AccountInterface $account): AccessResultInterface {
+  public function access(AccountInterface $account = NULL): AccessResultInterface {
+    if ($account === NULL) {
+      $account = \Drupal::currentUser();
+    }
+
     // No need for this access when the current user has the 'administer users'
     // permission. Roles can be edited on the user edit page.
     if ($account->hasPermission('administer users')) {