$ git clone -n https://src.fedoraproject.org/rpms/optimizer.git /var/lib/mock/f40-build-763303-122467/root/chroot_tmpdir/scmroot/optimizer
Cloning into '/var/lib/mock/f40-build-763303-122467/root/chroot_tmpdir/scmroot/optimizer'...
$ git fetch origin 0980457a25f0be471b21bb7ba9c0b865d6e09f85:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/optimizer
 * [new ref]         0980457a25f0be471b21bb7ba9c0b865d6e09f85 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0980457 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild