>>>>> On Sun, 17 Jun 2018, Kristian Fiskerstrand wrote:

> On 06/17/2018 10:45 AM, Ulrich Mueller wrote:
>> Here, it just seems like unnecessary fluff, given the committer and the
>> signed-off-by line should be identical.

Sorry, but this wasn't written by me. It is from kentnl's message:
https://archives.gentoo.org/gentoo-project/message/abf87983601cbe4182be632c759b9402

> Another example where you can end up with separate signed off by is a
> patch contributed by external party or proxied commit, where you can
> also end up with two separate signed off by lines (original author and
> committer) or a committer different from the signed off by, depending on
> the interpretation of the policy.

Ulrich