$ git clone -n https://src.fedoraproject.org/rpms/python-ethtool.git /var/lib/mock/f42-build-873177-178374/root/chroot_tmpdir/scmroot/python-ethtool
Cloning into '/var/lib/mock/f42-build-873177-178374/root/chroot_tmpdir/scmroot/python-ethtool'...
$ git fetch origin a3d9f99cc2f1256773c4ffc70005454732a37bbb:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-ethtool
 * [new ref]         a3d9f99cc2f1256773c4ffc70005454732a37bbb -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a3d9f99 Fix build with merged-sbin