* modules/proxy/mod_proxy_http.c (ap_proxy_http_request): Use the same
  brigade lifetime for the header brigade as the other brigades.
  POSSIBLE (but as yet unconfirmed) fix for crashes seen with threaded
  servers, e.g. PR 50335; appears correct or at least not harmful.

PR: 50335


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1534321 13f79535-47bb-0310-9956-ffa450edef68