$ git clone -n https://src.fedoraproject.org/rpms/perl-Math-Int64.git /var/lib/mock/f31-build-44818-26250/root/thebuilddir/tmp/scmroot/perl-Math-Int64
Cloning into '/var/lib/mock/f31-build-44818-26250/root/thebuilddir/tmp/scmroot/perl-Math-Int64'...
$ git reset --hard 75f5b8e1a6f68a0af1e7f35c09d6d1c4c92766fb
HEAD is now at 75f5b8e Perl 5.30 rebuild