$ git clone -n https://src.fedoraproject.org/rpms/pipewire.git /var/lib/mock/f38-build-side-42-init-devel-637783-26384/root/chroot_tmpdir/scmroot/pipewire
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-637783-26384/root/chroot_tmpdir/scmroot/pipewire'...
$ git fetch origin 451d768905352cbfd2bddac6562e9ac864c405c8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/pipewire
 * [new ref]         451d768905352cbfd2bddac6562e9ac864c405c8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 451d768 Update version to 0.3.68