$ git clone -n https://src.fedoraproject.org/rpms/perl-Data-Dumper.git /var/lib/mock/f29-build-1512-544/root/thebuilddir/tmp/scmroot/perl-Data-Dumper
Cloning into '/var/lib/mock/f29-build-1512-544/root/thebuilddir/tmp/scmroot/perl-Data-Dumper'...
$ git reset --hard 8e85cc7e6166838184b034d875759a39df4d10d3
HEAD is now at 8e85cc7 - Rebuilt for https://fedoraproject.org/wiki/Fedora_28_Mass_Rebuild