$ git clone -n https://src.fedoraproject.org/rpms/minetest.git /var/lib/mock/f41-build-713028-13044/root/chroot_tmpdir/scmroot/minetest
Cloning into '/var/lib/mock/f41-build-713028-13044/root/chroot_tmpdir/scmroot/minetest'...
$ git fetch origin b9037224bbd09e46647ee4367f3ca20de11721ec:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/minetest
 * [new ref]         b9037224bbd09e46647ee4367f3ca20de11721ec -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b903722 hiredis rebuild