Problem stopping/removing old container. realm is not identified correctly

[stefanoborini]

With the following situation (note that the containers are already stopped):

(venv) sborini@MacBook-Pro:jupyterhub (369-google-analytics) [25 stash] $ docker ps -a
CONTAINER ID        IMAGE                                   COMMAND                  CREATED             STATUS                      PORTS                     NAMES
3377349fe8fa        simphonyproject/filemanager             "/startup.sh"            42 hours ago        Exited (255) 38 hours ago   0.0.0.0:32769->8888/tcp   remoteexec-test-36eb77743ba748a6be537b7bef8bad01
418bfeb791e6        simphonyproject/simphony-ui:0.1.0       "/startup.sh"            43 hours ago        Exited (255) 38 hours ago   0.0.0.0:32768->8888/tcp   remoteexec-test-2cf0aebe6bbc49a9867f7193b02b167d
2a539f8fc681        simphonyproject/simphony-mayavi:0.6.0   "/startup.sh"            4 weeks ago         Exited (255) 4 weeks ago    0.0.0.0:32772->8888/tcp   remoteexec-test-de65152627e048ee9c274697bec506c0

I obtain these logs when trying to restart the container

[I 2017-03-29 10:37:08.983 JupyterHub log:100] 200 GET /hub/api/authorizations/cookie/jupyter-hub-token-test/[secret] ([email protected]) 10.96ms
[I 170329 10:37:08 container_manager:297] Got container image: simphonyproject/simphony-mayavi:0.6.0
[I 170329 10:37:08 container_manager:311] Container for image simphonyproject/simphony-mayavi:0.6.0 already present. Stopping.
[I 170329 10:37:08 container_manager:528] Stopping container 2a539f8fc6817b58d0f2f0b783dbaa7364cbba84a24ad247e9987a5369894d18
[E 170329 10:37:09 container_manager:544] Container 2a539f8fc6817b58d0f2f0b783dbaa7364cbba84a24ad247e9987a5369894d18 belongs to realm  instead of remoteexec. Refusing to stop.
[I 170329 10:37:09 container_manager:339] Mounting these volumes: 
    /tmp/remoteapp/test -> /workspace
[E 170329 10:37:09 container:270] Unhandled error starting test's container: 409 Client Error: Conflict ("b'{"message":"Conflict. The container name \\"/remoteexec-test-de65152627e048ee9c274697bec506c0\\" is already in use by container 2a539f8fc6817b58d0f2f0b783dbaa7364cbba84a24ad247e9987a5369894d18. You have to remove (or rename) that container to be able to reuse that name."}'")
[E 170329 10:37:09 web:1946] 500 POST /user/test/api/v1/containers/ (127.0.0.1) 51.33ms

I suspect those containers are residues of a stop. The code should be able to deal with them, but apparently at inspect there's something broken with the realm extraction when the container is stopped. Different format?