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proposal below. Fixes a compiler warning on v2.2 reported by Rainer Jung.
mod_cache: Introduce the thundering herd lock, a mechanism to keep
the flood of requests at bay that strike a backend webserver as
a cached entity goes stale.


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mod_ssl: Add SSLInsecureRenegotiation directive.
+1: jorton, trawick, minfrin


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mod_proxy_ajp: Really regard the operation a success, when the client
aborted the connection. In addition adjust the log message if the client
aborted the connection.
+1: rpluem, sf, minfrin


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+1: rpluem, jorton, trawick


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the flood of requests at bay that strike a backend webserver as
a cached entity goes stale.
+1: minfrin, jim, pgollucci


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mod_proxy_http: Make sure that when an ErrorDocument is served
from a reverse proxied URL, that the subrequest respects the status
of the original request. This brings the behaviour of proxy_handler
in line with default_handler.
PR: https://issues.apache.org/bugzilla/show_bug.cgi?id=47106
+1: minfrin, jim, rpluem


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mod_log_config: Add the R option to log the handler used within the
request.
Submitted by: Christian Folini <christian.folini netnea com>
+1: minfrin, jim, rpluem


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mod_include: Allow fine control over the removal of Last-Modified and ETag
headers within the INCLUDES filter, making it possible to cache responses if
desired. Fix the default value of the SSIAccessEnable directive.
+1: minfrin, jim, rpluem


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Thanks, Jeff.


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    Make sure to not destroy bucket brigades that have been created by earlier
    filters. Otherwise the pool cleanups would be removed causing potential
    memory leaks later on.

Submitted by: Stefan Fritsch
Reviewed by: sf, rpluem, pgollucci


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    Add AuthLDAPBindAuthoritative to allow other authentication providers a chance
    to run when mod_authnz_ldap finds a user but can't verify their password.

Submitted By: Justin Erenkrantz, Joe Schaefer, Tony Stevenson
Reviewed By: covener, pgollucci, rpluem



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backport of r914980 and partial backport r728399 (Bob Ionescu)


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revert r912288


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