$ git clone -n https://src.fedoraproject.org/rpms/perl-pgsql_perl5.git /var/lib/mock/f45-build-27734-625/root/chroot_tmpdir/scmroot/perl-pgsql_perl5
Cloning into '/var/lib/mock/f45-build-27734-625/root/chroot_tmpdir/scmroot/perl-pgsql_perl5'...
$ git fetch origin bc4157cf7dc1921397b8265581771e3b1f9478d5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-pgsql_perl5
 * [new ref]         bc4157cf7dc1921397b8265581771e3b1f9478d5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bc4157c Perl 5.44 rebuild