$ git clone -n https://src.fedoraproject.org/rpms/perl-GD.git /var/lib/mock/f31-build-45403-26350/root/thebuilddir/tmp/scmroot/perl-GD
Cloning into '/var/lib/mock/f31-build-45403-26350/root/thebuilddir/tmp/scmroot/perl-GD'...
$ git reset --hard b689993943d9c81c1fb2eb2b0eadd4e3a3c8f8b6
HEAD is now at b689993 Perl 5.30 rebuild