+Clean ups globals, caches and other things that could be still
+there from previous requests:
+
+=over 4
+
+=item Rollback any uncommitted transaction(s)
+
+=item Flush the ACL cache
+
+=item Flush records cache of the L<DBIx::SearchBuilder> if
+WebFlushDbCacheEveryRequest option is enabled, what is true by default
+and is not recommended to change.
+
+=item Clean up state of RT::Action::SendEmail using 'CleanSlate' method
+
+=item Flush tmp GnuPG key preferences
+
+=back