False negatives with redirect module

Filtering the existing url-redirects with the redirect module on admin/config/search/redirect results a 404-Error instead of the result page: admin/config/search/redirect/list/myredirect.

Extending the function fast_404_validate_path_sql() in fast_404.inc with the following lines did the job for me:

// Check if it's a search for redirect filtering (redirect module) 
if (count($path_parts) > 4) {
  if ($path_parts[0] == 'admin' && $path_parts[1] == 'config' && $path_parts[2] == 'search' && $path_parts[3] == 'redirect' && $path_parts[4] == 'list') {
    return TRUE;
  }
}