Rails - Feb 2006 - rescue_action with RoutingError not loading ApplicationController/ApplicationHelper

Why is it that when rescue_action is called with any exception except for
RoutingError, "self" refers to a controller within my application, but
when
there''s a RoutingError, "self" refers to an object of
ActionController::Base?  This makes some sense because a
"RoutingError"
implies that no controller was found to process the request.  However, I am
trying to render pages (rather than doing a redirect) from within
rescue_action and none of my application-wide helpers or my application-wide
filters (defined in application.rb and application_helper.rb) are being
loaded/called/etc.

-Warren
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