I opened a ticket that I no longer wish to pursue, but I left it open in case someone else wanted to pick it up. However, even after unsubscribing from the issue, I still get notifications (presumably because I opened it).
The person who opened the ticket does not always need/care to know about future updates, so they should be able to unsubscribe.
Could you link me to said ticket?
Here you go: https://pagure.io/mindshare/issue/261