Connecting and disconnecting to the same process multiple times causes event emitter leak warnings

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Server using string based output.
Starting insecure websocket server
Insecure server listening on port 12345
(node:11037) UnhandledPromiseRejectionWarning: Error: WebSocket is not open: readyState 2 (CLOSING)
    at WebSocket.send (/snapshot/intiface-cli-node/node_modules/ws/lib/websocket.js:329:19)
    at WebSocketServer.<anonymous> (/snapshot/intiface-cli-node/node_modules/buttplug-node-websockets/dist/src/ButtplugNodeWebsocketServer.js:122:32)
    at Generator.next (<anonymous>)
    at fulfilled (/snapshot/intiface-cli-node/node_modules/buttplug-node-websockets/dist/src/ButtplugNodeWebsocketServer.js:11:58)
    at process._tickCallback (internal/process/next_tick.js:68:7)
(node:11037) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). (rejection id: 1)
(node:11037) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.
^CShutting down
Stopping websocket server