I've been reading bug 45051, caressing my ego, when I noticed…
Below bug 45051 comment 6, InlineHistory claims that MZMcBride marked a bug as a duplicate of that one. This is not true; Krinkle did that in comment 5, and MZMcBride only quoted the automatic comment.
The only explanation I see is that InlineHistory "marked as a duplicate" detection is too eager. It should only trigger when that comment is at the end of the comment, in a separate paragraph.
Version: unspecified
Severity: minor
See Also:
https://bugzilla.mozilla.org/show_bug.cgi?id=928387