$ git clone -n https://src.fedoraproject.org/rpms/sha2.git /var/lib/mock/f31-build-86251-31663/root/chroot_tmpdir/scmroot/sha2
Cloning into '/var/lib/mock/f31-build-86251-31663/root/chroot_tmpdir/scmroot/sha2'...
$ git reset --hard e3c21c3bc3cdccdcd0932e62780b96cb9484f181
HEAD is now at e3c21c3 - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild