$ git clone -n https://src.fedoraproject.org/rpms/pigz.git /var/lib/mock/f40-build-2023514-46910/root/chroot_tmpdir/scmroot/pigz
Cloning into '/var/lib/mock/f40-build-2023514-46910/root/chroot_tmpdir/scmroot/pigz'...
$ git fetch origin 5ae9b111f9a41cd9e35659ad650f908e6a474654:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/pigz
 * [new ref]         5ae9b111f9a41cd9e35659ad650f908e6a474654 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5ae9b11 remove upstreamed patch