I copied a drupal installation. Created a new database, imported the dump, created a new subdomain, modified the settings.php.
The site runs with Google Captcha. So I created a captcha site key pair for the new subdomain. Because of the not working captcha I logged in via ‘drush uli 1’. Then I switched to “/admin/config/captcha” to set the new public and private key pair.
While trying to save the key pair Drupal reloads the page and displays the old key pair. I tried to change a few other things. Can’t change anything.
The whole directory belongs ‘www-data:www-data’.