I believe the original report is bug 1585898, while the last message is bug 1585971. It should be relatively easy to confirm, since the former has a fix landed.
Bug 1586045 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 believe the original report is bug 1585898, while the last message is bug 1585971. It should be relatively easy to confirm, since they both are marked as fixed.