networkInformation: Switching network type, then switching back again, results in RECONNECT_REJECTED

Version: v0.15.5

Steps to reproduce:

1. Within the networkInformation object, set the type to "wifi". Wait for connection to resume as expected.
2. Within the networkInformation object, set the type to "cellular". Wait for connection to resume as expected.
3. Within the networkInformation object, set the type to "wifi".

Then, Observe:

1. After attempting a reconnection to "wifi" for the second time, a DIRECT_LINE/RECONNECT_REJECTED error is thrown, with a payload of: Error: Failed to reconnect. DirectLineJS returned 4.\n at reconnectSaga$
2. The webchat ui is disabled, while displaying an "Unable to Connect" error message.

networkInformation のタイプを wifi から cellular に変更し、再び wifi に戻して、v0.15.5 のシーケンスを再現します。エラーに示されている reconnectSaga$ の位置から開始し、ネットワークタイプの遷移処理を追跡します。2 回目の wifi への切り替えで RECONNECT_REJECTED が発生せずに再接続され、Web Chat UI が無効にならなければ完了です。