[feature suggestion] fixup patch review

Hello,


When a large patch series is posted and an issue on a single patch is found, it
is useful to post a fixup patch as a reply to the review, instead of posting
the entire new version of the series.  It is useful for doing quick reviews
without polluting mailing list and reviewer's inbox.  But it seems sashiko is
not reviewing such fixup.  Would it be possible to make sashiko understand and
review such fixup patches?


Thanks,
SJ