[wp-trac] [WordPress Trac] #20109: Valid htaccess rule causes 404 after upgrade to 3.3.1

[WordPress Trac]

#20109: Valid htaccess rule causes 404 after upgrade to 3.3.1
---------------------------+-----------------------------
 Reporter:  ronnieg        |      Owner:
     Type:  defect (bug)   |     Status:  new
 Priority:  normal         |  Milestone:  Awaiting Review
Component:  Rewrite Rules  |    Version:  3.3.1
 Severity:  critical       |   Keywords:
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 On 2/18/2012, I upgraded WP from 3.2.1 to 3.3.1. on
 www.denverhomevalue.com. I later noticed that Google webmaster tools
 started reporting 404 errors on lots of pages that were fine before. WP
 was still returning the proper pages and content, not my custom 404 page,
 so the issue was not readily apparent except in WMT reports. Running http
 header response checkers confirmed 404 responses, despite good contents
 being returned.

 Deleting sections of the htaccess file until the problem went away, the
 issue was isolated to two rules meant to escape following rewrite rules on
 certain urls:

 {{{
 RewriteRule ^city(.*) - [L]
 RewriteRule ^areas(.*) - [L]
 }}}

 These were the same family of urls that started returning 404s after 3.3.1
 upgrade. These rules were in place since 12/5/2011, with WP 3.2.1 and
 never caused a problem.

 I was able to revert a backup of the site to 3.2.1, on the same exact
 server environment, and confirm that these same valid htaccess rewrite
 rules were not a problem in that release.

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Ticket URL: <http://core.trac.wordpress.org/ticket/20109>
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