Fixed problem with ErrorDocument not working for virtual hosts

due to one of the performance changes in 1.2b7.

Submitted by: Dean Gaudet
Reviewed by: Roy Fielding, Ken Coar


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/1.3.x@77711 13f79535-47bb-0310-9956-ffa450edef68