CiviMail: throws failed foreign key constraint when attempting to send without header and footer

The following is thrown after "send now" in the final screen.

Problem appears to be that not having header_id or footer_id causes the FK constraint to croak.

error

Array
(
[callback] => Array
(
[0] => CRM_Core_Error
[1] => handle
)

[code] => -3
[message] => DB Error: constraint violation
[mode] => 16
[debug_info] => INSERT INTO civicrm_mailing (domain_id , reply_id , unsubscribe_id , optout_id , name , from_name , from_email , replyto_email , subject , body_text , body_html , is_template , url_tracking , forward_replies , auto_responder , open_tracking , is_completed ) VALUES ( 1 , 7 , 5 , 6 , 'test final? 2' , 'yo' , 'brush@tryonfarm.org' , 'brush@tryonfarm.org' , 'test' , ... , 0 , 1 , 1 , 0 , 1 , 0 ) [nativecode=1216 ** Cannot add or update a child row: a foreign key constraint fails]
[type] => DB_Error
[user_info] => INSERT INTO civicrm_mailing (domain_id , reply_id , unsubscribe_id , optout_id , name , from_name , from_email , replyto_email , subject , body_text , body_html , is_template , url_tracking , forward_replies , auto_responder , open_tracking , is_completed ) VALUES ( 1 , 7 , 5 , 6 , 'test final? 2' , 'yo' , 'brush@tryonfarm.org' , 'brush@tryonfarm.org' , 'test' , ... , 0 , 1 , 1 , 0 , 1 , 0 ) [nativecode=1216 ** Cannot add or update a child row: a foreign key constraint fails]
[to_string] => [db_error: message="DB Error: constraint violation" code=-3 mode=callback callback=CRM_Core_Error::handle prefix="" info="INSERT INTO civicrm_mailing (domain_id , reply_id , unsubscribe_id , optout_id , name , from_name , from_email , replyto_email , subject , body_text , body_html , is_template , url_tracking , forward_replies , auto_responder , open_tracking , is_completed ) VALUES ( 1 , 7 , 5 , 6 , 'test final? 2' , 'yo' , 'brush@tryonfarm.org' , 'brush@tryonfarm.org' , 'test' , ..., 0 , 1 , 1 , 0 , 1 , 0 ) [nativecode=1216 ** Cannot add or update a child row: a foreign key constraint fails]"]
)