Saw another issue for this elsewhere but I'm also being haunted by a ghost notification that I just can't get rid of. Apparently my colleague has it also:
No idea how to get rid of it and it's driving me nuts as I have a completionist personality that needs to read all notifications
Had this for weeks and since posting in here it seems to have been resolved. Would like to think a developer fixed it but closing anyway :)
Thanks for posting about this, I'll do some digging and see what we can do.
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