client should not clear 'unbind' status on disconnect

[pfmooney]

The unbind flag, used to prevent automatic reconnect during manual unbind, is cleared at the end of the disconnect process. This state could be useful for examining disconnect client state during postmortem debugging. It should not be discarded as it is now.

[jsumners]

👋

On February 22, 2023, we released version 3 of this library. As a result, we are closing this issue/pull request.

Please see issue #839 for more information, including how to proceed if you feel this closure is in error.