generates the following error:
PHP fatal error in /usr/local/apache/common-local/php-1.21wmf1/includes/Title.php line 4154:
Argument 1 passed to Title::equals() must be an instance of Title, null given, called in /usr/local/apache/common-local/php-1.21wmf1/extensions/ProofreadPage/ProofreadPage.body.php on line 960 and defined
Edition of this page works, but no change is accepted.
Maybe, thit is because the transcluded page contains two commas in filename.