$ git clone -n https://src.fedoraproject.org/rpms/perl-Devel-Caller.git /var/lib/mock/f31-build-44682-26250/root/thebuilddir/tmp/scmroot/perl-Devel-Caller
Cloning into '/var/lib/mock/f31-build-44682-26250/root/thebuilddir/tmp/scmroot/perl-Devel-Caller'...
$ git reset --hard 6935d12b977c7d3555227316e3f8c5bef33c2b30
HEAD is now at 6935d12 Perl 5.30 rebuild