Change club forum to not send Solved reminders?

[opentype]

I have a club forum which is sending out reminders to mark a solution, but of course club forums don’t even have that setting. 

Anyone knows how to turn that off? I believe it’s part of the forum_bitopions (which are currently set to "8") but I don’t know which value it would need. 

 

(P.S. Not posting this a bug/IPS issue. It might just be the result of one of those “club enhancement” plugins I used years ago.)