$ git clone -n https://src.fedoraproject.org/rpms/perl-HTTP-Request-Params.git /var/lib/mock/f45-build-24044-601/root/chroot_tmpdir/scmroot/perl-HTTP-Request-Params
Cloning into '/var/lib/mock/f45-build-24044-601/root/chroot_tmpdir/scmroot/perl-HTTP-Request-Params'...
$ git fetch origin fd790f0b3789dc5359c8836c3015300626669a09:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-HTTP-Request-Params
 * [new ref]         fd790f0b3789dc5359c8836c3015300626669a09 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fd790f0 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild