Calling StdioDriver.disconnect() does not kill OmniSharp.exe process

[xen22]

StdioDriver.disconnect() only kills the run bash script process, not the OmniSharp.exe process that the script spawns:
https://github.com/OmniSharp/omnisharp-node-client/blob/master/lib/drivers/StdioDriver.ts#L109

Calling ReactiveClient.stopServer() does the trick though.