Win32: Reset the acceptex context on a GetQueuedCompletionStatus() failure. We were

losing contexts before this fix, and if we lost enough, the server would stop responding.

GetQueuedCompletionStatus can fail with ERROR_NETNAME_DELETED when a client closes
its end of a connection and we try to reuse the accept socket.  Really bizzare... I would
have thought the AcceptEx using the recycled socket would have failed instead...


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@86128 13f79535-47bb-0310-9956-ffa450edef68