Consistency checks - Scan for issue - Check work on Tickets (v11.1.3)

Hi,
just discovered a small issue in named consistency check.

file: model/Consistency.php, line 773

SELECT ... ,(select idActivity from ticket t where t.id=w.refId) ... FROM ... where ... and (select idActivity from ticket t where t.id=w.refId) is not NULL;

Query indicates every booked work, independant from refType, as a ticket. So you get results, if there is some ticket with id of a reference, having referenced any activity.
Attached find an exmple of a query-result (slightly modified for better reading) - first three lines showing . 

Best regards,
Torben