Webmentions trigger undefined variables

[Phyks]

Hi,

This post is doing a webmention (reply-to) on one of my posts hosted on my Known instance. However, it does not show as a comment on my Known instance.

I was trying to debug it, manually sending the webmention again, and found that Known was giving the following error:

PHP Notice:  Undefined variable: subject in /Idno/Common/Entity.php on line 1749
PHP Notice:  Undefined variable: notification_template in /Idno/Common/Entity.php on line 1749
PHP Notice:  Undefined variable: context in /Idno/Common/Entity.php on line 1749

I am using an up-to-date git clone of the repo. I did not find yet what was causing this error (well, probably this switch which does not have a default value, but I did not find more yet). It's probably coming from an invalid markup in the source URL.

Thanks