$ git clone -n https://src.fedoraproject.org/rpms/libnvme.git /var/lib/mock/f41-build-833103-157811/root/chroot_tmpdir/scmroot/libnvme
Cloning into '/var/lib/mock/f41-build-833103-157811/root/chroot_tmpdir/scmroot/libnvme'...
$ git fetch origin 8fbad423e302461ea994f8a2a23ea915d6f9175a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libnvme
 * [new ref]         8fbad423e302461ea994f8a2a23ea915d6f9175a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8fbad42 New sources