Looks like comment 38-41 is actually a recent regression and is tracked in bug 1755416 (which has a patch making its way through the review process now)
Bug 1698855 Comment 42 Edit History
Note: The actual edited comment in the bug view page will always show the original commenter’s name and original timestamp.
Looks like comment 38 - comment 41 is actually a recent regression and is tracked in bug 1755416 (which has a patch making its way through the review process now)