$ git clone -n https://src.fedoraproject.org/rpms/Macaulay2.git /var/lib/mock/f37-build-654729-72816/root/chroot_tmpdir/scmroot/Macaulay2
Cloning into '/var/lib/mock/f37-build-654729-72816/root/chroot_tmpdir/scmroot/Macaulay2'...
$ git reset --hard 3e37e1a7c61a2bc8b4f1addfe58908b3ce1a4b64
HEAD is now at 3e37e1a Restore s390x optimization reduction, apparently still needed.