Reopen issue #840

[zcteo]

issue#840
@dxdjgl
sometimes, e.Socket could throw an exception

Originally posted by @zcteo in #840 (comment)

[zcteo]

current netmq version: 4.0.1.0

[stale]

This issue has been automatically marked as stale because it has not had activity for 365 days. It will be closed if no further activity occurs within 56 days. Thank you for your contributions.

[hryhorasz]

This is still an issue. There is no way to get the RemoteEndPoint of the disconnected socket because it's null.