Deprecated function: preg_replace()

Problem/Motivation

Deprecated function: preg_replace(): Passing null to parameter #3 ($subject) of type array|string is deprecated in Drupal\form_mode_manager\FormModeManager->getFormModeMachineName() (line 265 of modules/contrib/form_mode_manager/src/FormModeManager.php).

Steps to reproduce

I have this error after going to node/*/edit

Drupal:10.3.2
PHP: 8.2.23

Proposed resolution

I think this line fixes this issue :

    return preg_replace('/^.*\./', '', $form_mode_id ?? '');