Following up on r2479, return an error when the server starts mindreading by responding before we ask something, instead of preparing to write the request anyway.
Following up on r2479, return an error when the server
starts mindreading by responding before we ask something,
instead of preparing to write the request anyway.

The changed check resolves a WIN64 specific segfault
from Subversion.
(Not sure why, but I'm not able to reproduce this double setup
 from WIN32).

* outgoing.c
  (read_from_connection): Return error instead of setting up
    request (again??)

wzugang/serf,wzugang/serf,liuzongquan/serf,justinweb/serf,TommyU/serf,justinweb/serf,blueszhangsh/serf,krime/serf,justinweb/serf,TommyU/serf,liuzongquan/serf,sworda/serf,muthusuba/serf,muthusuba/serf,TommyU/serf,justinweb/serf,blueszhangsh/serf,liuzongquan/serf,wzugang/serf,idomon/serf,blueszhangsh/serf,wzugang/serf,Manouchehri/serf,Manouchehri/serf,idomon/serf,blueszhangsh/serf,Manouchehri/serf,muthusuba/serf,idomon/serf,krime/serf,krime/serf,sworda/serf,liuzongquan/serf,muthusuba/serf,sworda/serf,TommyU/serf,Manouchehri/serf,krime/serf,sworda/serf,idomon/serf