Sanity-check the use of multiple instances of XLATEOUT in a

filter chain.  If the translation performed by an instance
being run for the first time clashes with an instance already
in place, disable the new instance.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@86335 13f79535-47bb-0310-9956-ffa450edef68