Fixed that filtering may return unwanted blank values (#14051).

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@11850 e93f8b46-1217-0410-a6f0-8f06a7374b81
Use a shallow block instead of the :shallow option that ignores routes scope (#14023).

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@11851 e93f8b46-1217-0410-a6f0-8f06a7374b81