Description of problem:
The REMOTE_USER env variable cannot be used from an internal redirect,
e.g. an ErrorDocument; the REDIRECT_REMOTE_USER variable is needed as
per 2.0.49 and later.
Version-Release number of selected component (if applicable):
An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on the solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.