Manfred had already patched the same issue. References #6946.

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@6994 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

railties/CHANGELOG

 *SVN*
 
-* Scaffolded validation errors set the appropriate HTTP status for XML responses.  #8622 [mmmultiworks]
+* Scaffolded validation errors set the appropriate HTTP status for XML responses.  #6946, #8622 [Manfred Stienstra, mmmultiworks]
 
 * Sexy migrations for the session_migration generator.  #8561 [Vladislav]