I accidentally hit the ”k” key while in Thunderbird, which resulted in a mail thread being put on ignore, but all my efforts in trying to un-ignore it again doesn’t work, since it remains ignored regardless of how many times I use the Ignore Thread option. The thread icon in the “Display message threads” column remains the same, regardless of me clicking on the “Ignore Thread” again, so it seems to me like I can ignore threads, but not un-ignore them. So is this a bug, or is there another way to un-ignore a thread and get the ignore icon removed, so the thread will show up in the folder normally, instead of me having to select the View -> Threads -> Ignored Threads option?