When creating Differential online (either pasting in the diff or doing "arc diff --preview" then adding the diff to a new revision) then doing "arc land --merge" I get a merge commit with "Summary: " inline with the summary text.
Whereas creating a differential revision with "arc diff" leads to the commit being amended with "Summary" on a separate line to the summary text. Which I prefer as it doesn't change the column length of my commit message.
e.g. the merge request created for for https://phabricator.kde.org/D2935 looks like:
Improve ksmserver debug output Summary: Correct misleading debug output. Make all ksmserver output (apart from the tests) controllable with QLoggingCategory. Test Plan: Compiled, logged in and out both with & without "ksmserver.debug=true" in qtlogging.ini Reviewers: davidedmundson Reviewed By: davidedmundson Subscribers: plasma-devel Tags: #plasma Differential Revision: https://phabricator.kde.org/D2935
when I would expect
... Summary: Correct misleading debug output. Make all ksmserver output (apart from the tests) controllable with QLoggingCategory. ...
$ arc version
arcanist 9e82ef979e8148c43b9b8439025d505b1219e213 (25 Aug 2016)
libphutil f8af794b2135904c2f4180647ad6f81775a773a2 (12 Sep 2016)
but a quick skim of recent commits seems to show no relevant changes since