Emails not sent by Ticket Workflows when Email Opt Out = 1 Despite Condition being removed

Ticket workflows that send an email to a contact on creation or on update of a ticket are not being sent if the 'Email Opt Out' field for the contact is checked despite the condition being removed from the relevant workflows. I have discovered that this occurs because of the following line of code in the file

modules/com_vtiger_workflow/VTEmailRecipientsTemplate.inc

return $data['emailoptout'] == 0;

If I modify the above value to 1 then if a contact has the 'Email Opt Out' field checked they receive the notification/update email from the ticket workflows. Of course this is not the solution I require. The system should send a notification / update to any contact if a ticket is created /updated providing the 'Email Opt Out' condition is removed from the workflows. It should not be hard coded whatsoever.