fix reconnecting clients

Summary:
When an archived device reconnected, the clients from the architved device weren't removed and a new client was added. This caused a client to be shown multiple times after reconnecting a device.

In this diff, all clients and pluginStates from an archived device are removed once the device reconnects.

Reviewed By: passy

Differential Revision: D16075349

fbshipit-source-id: 1d0e6ce17c89bb75dd993466bca6bd64e2c63338

src/reducers/connections.js

@@ -237,7 +237,9 @@ const reducer = (state: State = INITAL_STATE, action: Action): State => {
 
       return {
         ...state,
-        clients: state.clients.concat(payload),
+        clients: state.clients
+          .filter((client: Client) => client.id !== payload.id)
+          .concat(payload),
         uninitializedClients: state.uninitializedClients.filter(c => {
           return (
             c.deviceId !== payload.query.device_id ||