$ git clone -n https://src.fedoraproject.org/rpms/perl-Math-ConvexHull-MonotoneChain.git /var/lib/mock/f31-build-44439-26163/root/thebuilddir/tmp/scmroot/perl-Math-ConvexHull-MonotoneChain
Cloning into '/var/lib/mock/f31-build-44439-26163/root/thebuilddir/tmp/scmroot/perl-Math-ConvexHull-MonotoneChain'...
$ git reset --hard ac2d5324e625050e1c7d6d16ac4d8c91f8162642
HEAD is now at ac2d532 Perl 5.30 rebuild