Can't unsubscribe from summary emails

Example of this problem at

I received a summary email from you forum and I wanted to unsubscribe. So I clicked the unsubscribe link on that same email.

And the result is on that gif (see link).

Am I doing something wrong? @samsaffron

Why are you unchecking the box before clicking Unsubscribe?

Can you try again but leave that checkbox ticked?

Looks like another case of dumb user xD

Sorry guys, I guess as a User I’m just too used to unchecking a mailing list and then clicking Save to unsubscribe. Here you just click to unsubscribe. I didn’t even read what I was unchecking, I was in auto-pilot mode.