Migration Script losing critical information - Helpdesk & Faq Comments to ModComments

In the schema file 540_to_600RC.php is a chunk of code to migrate comments from the old ticketcomments and faqcomments tables into the modcomments table.

It is broken.

Where there are any comments made by a Contact - the Contact ID is written into the crmentity table.

This is just wrong. It should be written into the "customer" column of the modcomments table.