$ git clone -n https://src.fedoraproject.org/rpms/nulib2.git /var/lib/mock/f31-build-63685-29420/root/chroot_tmpdir/scmroot/nulib2
Cloning into '/var/lib/mock/f31-build-63685-29420/root/chroot_tmpdir/scmroot/nulib2'...
$ git reset --hard 5de44f505abb0417f5d1477d638fddf2ad943eac
HEAD is now at 5de44f5 - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild