$ git clone -n https://src.fedoraproject.org/rpms/orocos-kdl.git /var/lib/mock/f31-build-66415-29869/root/chroot_tmpdir/scmroot/orocos-kdl
Cloning into '/var/lib/mock/f31-build-66415-29869/root/chroot_tmpdir/scmroot/orocos-kdl'...
$ git reset --hard ae2044360a01fb09b6caff28d4ed0d920e5a9cb8
HEAD is now at ae20443 - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild