$ git clone -n https://src.fedoraproject.org/rpms/rubygem-rkerberos.git /var/lib/mock/f31-build-99769-33202/root/chroot_tmpdir/scmroot/rubygem-rkerberos
Cloning into '/var/lib/mock/f31-build-99769-33202/root/chroot_tmpdir/scmroot/rubygem-rkerberos'...
$ git reset --hard c456f71d86c1d0e47498c5aac91095e106b89b0f
HEAD is now at c456f71 - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild