$ git clone -n https://src.fedoraproject.org/rpms/ghc-bifunctors.git /var/lib/mock/f40-build-2292471-56139/root/chroot_tmpdir/scmroot/ghc-bifunctors
Cloning into '/var/lib/mock/f40-build-2292471-56139/root/chroot_tmpdir/scmroot/ghc-bifunctors'...
$ git fetch origin d729b7138ff2fa2ca7efb956cfb67d8d40c9500e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-bifunctors
 * [new ref]         d729b7138ff2fa2ca7efb956cfb67d8d40c9500e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d729b71 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild