timeout in _get_channel_packet during _init_sftp_connection should be a failure #1684
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If using SFTP to connect to a server that timed out during the initial connection, you'll get weird error messages, as the _init_sftp_connection will ignore the timeout and continue to try to connect, but now the underlying SSH connection is in a weird state. Instead, it should treat that as a failure.
The underlying issue can be reproduced by changing the timeout to a really small value (say 1 second) and then connecting to a server far enough away that it'll timeout during connection.