$ git clone -n https://src.fedoraproject.org/rpms/libnxz.git /var/lib/mock/f37-build-672412-75461/root/chroot_tmpdir/scmroot/libnxz
Cloning into '/var/lib/mock/f37-build-672412-75461/root/chroot_tmpdir/scmroot/libnxz'...
$ git reset --hard d0d3c1d31cf90cd854db48f08c8463162b9ddccf
HEAD is now at d0d3c1d Update to libnxz 0.64