$ git clone -n https://src.fedoraproject.org/rpms/perl-Math-ConvexHull-MonotoneChain.git /var/lib/mock/f31-build-89249-32069/root/chroot_tmpdir/scmroot/perl-Math-ConvexHull-MonotoneChain
Cloning into '/var/lib/mock/f31-build-89249-32069/root/chroot_tmpdir/scmroot/perl-Math-ConvexHull-MonotoneChain'...
$ git reset --hard f33993520a37e60b5bd1a279417bb23ccb46b098
HEAD is now at f339935 - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild