kubernetes: Service account not working in hyperkube since v1.3.0-alpha.5

Problem Service account seems to be broken in Hyperkube

Steps:

export K8S_VERSION=v1.3.0-alpha.5
export ARCH=amd64
docker run -d \
    --volume=/:/rootfs:ro \
    --volume=/sys:/sys:rw \
    --volume=/var/lib/docker/:/var/lib/docker:rw \
    --volume=/var/lib/kubelet/:/var/lib/kubelet:rw \
    --volume=/var/run:/var/run:rw \
    --net=host \
    --pid=host \
    --privileged \
    gcr.io/google_containers/hyperkube-${ARCH}:${K8S_VERSION} \
    /hyperkube kubelet \
        --containerized \
        --hostname-override=127.0.0.1 \
        --api-servers=http://localhost:8080 \
        --config=/etc/kubernetes/manifests \
        --cluster-dns=10.0.0.10 \
        --cluster-domain=cluster.local \
        --allow-privileged --v=2

kubectl run debain2 --image debian sleep 1000000
kubectl exec debain2-1279483658-wakm7 ls /var/run/secrets/kubernetes.io/serviceaccount

Result is empty dir.

Comment: It works in v1.3.0-alpha.4

export K8S_VERSION=v1.3.0-alpha.4
export ARCH=amd64
docker run ...
kubectl run debain2 --image debian sleep 1000000
kubectl exec debain2-1279483658-wakm7 ls /var/run/secrets/kubernetes.io/serviceaccount
ca.crt
namespace
token