mondrake
--- a/core/lib/Drupal/Core/Extension/DatabaseDriverUninstallValidator.php
+++ b/core/lib/Drupal/Core/Extension/DatabaseDriverUninstallValidator.php
  public function validate($module) {
    $reasons = [];

+    // This is here to allow InstallerNonDefaultDatabaseDriverTest execute,
+    // it needs to get a new connection than the one passed in construction.
    // @todo Remove the next line of code in
    // https://www.drupal.org/project/drupal/issues/3129043.