$ git clone -n https://src.fedoraproject.org/rpms/kmailtransport.git /var/lib/mock/f40-build-1221551-22751/root/chroot_tmpdir/scmroot/kmailtransport
Cloning into '/var/lib/mock/f40-build-1221551-22751/root/chroot_tmpdir/scmroot/kmailtransport'...
$ git fetch origin b359c549f5ac42a4d9f340eb9bbb5bf93ab3269b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kmailtransport
 * [new ref]         b359c549f5ac42a4d9f340eb9bbb5bf93ab3269b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b359c54 Explicify file conflict with kf5-kmailtransport