I did look at it and was able to reproduce. I'll send this in the perf queue to be triaged more appropriately
Bug 1809944 Comment 3 Edit History
Note: The actual edited comment in the bug view page will always show the original commenter’s name and original timestamp.
I did look at it and was able to reproduce. ~I'll send this in the perf queue to be triaged more appropriately~ that seems like it was already done. I'll check up with it then (and i'll reassign myself)