$ git clone -n https://src.fedoraproject.org/rpms/perl-Perlbal-XS-HTTPHeaders.git /var/lib/mock/f31-build-44429-26148/root/thebuilddir/tmp/scmroot/perl-Perlbal-XS-HTTPHeaders
Cloning into '/var/lib/mock/f31-build-44429-26148/root/thebuilddir/tmp/scmroot/perl-Perlbal-XS-HTTPHeaders'...
$ git reset --hard 6a9094ff2cb329bb0385b5c3f732210bfb48c0de
HEAD is now at 6a9094f Perl 5.30 rebuild