$ git clone -n https://src.fedoraproject.org/rpms/lvm2.git /var/lib/mock/f42-build-867463-175508/root/chroot_tmpdir/scmroot/lvm2
Cloning into '/var/lib/mock/f42-build-867463-175508/root/chroot_tmpdir/scmroot/lvm2'...
$ git fetch origin 8df1dce61c4e7c93e59aea354a48de398f155862:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/lvm2
 * [new ref]         8df1dce61c4e7c93e59aea354a48de398f155862 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8df1dce New upstream release v2.03.30