http://neverworkintheory.org/2012/07/04/programmer-information-needs-after-memory-failure.html

I've not yet read that paper, but in their commentary they note that "TODO" comments in code rarely get acted upon. Immediate realisation: such comments could have reference a ticket and an automatic CI job could fail if no ticket is referenced (or the ticket doesn't exist or it's marked as done).

Of course, if you have the ticket, the "TODO" comment in the code may be unnecessary.