$ git clone -n https://src.fedoraproject.org/rpms/haruna.git /var/lib/mock/f38-build-side-42-init-devel-584301-26104/root/chroot_tmpdir/scmroot/haruna
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-584301-26104/root/chroot_tmpdir/scmroot/haruna'...
$ git fetch origin defb11a20abcc36f0b618eafa6b1e9774b2894b3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/haruna
 * [new ref]         defb11a20abcc36f0b618eafa6b1e9774b2894b3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at defb11a Rebuild for ffmpeg 6.0