This filter can be used for changing the path of the comment-form.php . The hook works if the file is no customized, that is, there is no such file in the active theme’s wpdiscuz folder.
Changelog
since 7.0.0 version
Parameters
$path (type: string) – the path of the comment-form.php that should be loaded
Usage
add_filter("wpdiscuz_comment_form_include", function ($path) {
return "FULL_PATH_TO_FILE";
}, 10, 3);