$ git clone -n https://src.fedoraproject.org/rpms/perl-HTTP-Parser.git /var/lib/mock/f45-build-24030-601/root/chroot_tmpdir/scmroot/perl-HTTP-Parser
Cloning into '/var/lib/mock/f45-build-24030-601/root/chroot_tmpdir/scmroot/perl-HTTP-Parser'...
$ git fetch origin ef6b76a6c12880516719deb6a628ec1bff2d8327:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-HTTP-Parser
 * [new ref]         ef6b76a6c12880516719deb6a628ec1bff2d8327 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ef6b76a Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild