$ git clone -n https://src.fedoraproject.org/rpms/perl-Math-GMP.git /var/lib/mock/f33-build-123703-39027/root/chroot_tmpdir/scmroot/perl-Math-GMP
Cloning into '/var/lib/mock/f33-build-123703-39027/root/chroot_tmpdir/scmroot/perl-Math-GMP'...
$ git reset --hard 85633319c4310bc1a569255aedd37c61d9226ede
HEAD is now at 8563331 Update to 2.20