$ git clone -n https://src.fedoraproject.org/rpms/kwin.git /var/lib/mock/f41-build-1037073-18774/root/chroot_tmpdir/scmroot/kwin
Cloning into '/var/lib/mock/f41-build-1037073-18774/root/chroot_tmpdir/scmroot/kwin'...
$ git fetch origin 0a8dd13a711b096b79cf9fc4224ae8bed371274e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kwin
 * [new ref]         0a8dd13a711b096b79cf9fc4224ae8bed371274e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0a8dd13 Backport patch to allow org.freedesktop.locale1 in livesys