$ git clone -n https://src.fedoraproject.org/rpms/perl-JSON-Parse.git /var/lib/mock/f31-build-44669-26250/root/thebuilddir/tmp/scmroot/perl-JSON-Parse
Cloning into '/var/lib/mock/f31-build-44669-26250/root/thebuilddir/tmp/scmroot/perl-JSON-Parse'...
$ git reset --hard f5c6525fa079ce2536b5cd183aa0949659b05fc5
HEAD is now at f5c6525 Perl 5.30 rebuild