"fix" regression in r1773397.

committing for discussion purposes to trunk.  I have reopened PR60458 because
I am tempted to revert the entire thing, it was not really a release-to-release
regression because the reporter arbitrarily used a new 2.4 syntax and the semantics
were unclear.

It is useful to have global exceptions apply to per-location proxypass, but it totally
breaks the "fast" lookup part of it.



git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1780909 13f79535-47bb-0310-9956-ffa450edef68