$ git clone -n https://src.fedoraproject.org/rpms/libpoly.git /var/lib/mock/f31-build-59279-28556/root/chroot_tmpdir/scmroot/libpoly
Cloning into '/var/lib/mock/f31-build-59279-28556/root/chroot_tmpdir/scmroot/libpoly'...
$ git reset --hard b24f7991b26c2289cb9284f758023a960d2634a0
HEAD is now at b24f799 - Rebuilt for https://fedoraproject.org/wiki/Fedora_30_Mass_Rebuild