more reliable loading of the site tree
more reliable loading of the site tree

instances such as /page_not_found would error out with the previously
proposed solution.

concrete5/concrete5,deek87/concrete5,haeflimi/concrete5,deek87/concrete5,deek87/concrete5,mlocati/concrete5,mlocati/concrete5,concrete5/concrete5,concrete5/concrete5,biplobice/concrete5,jaromirdalecky/concrete5,jaromirdalecky/concrete5,haeflimi/concrete5,mlocati/concrete5,jaromirdalecky/concrete5,haeflimi/concrete5,mlocati/concrete5,concrete5/concrete5,haeflimi/concrete5,biplobice/concrete5,biplobice/concrete5,biplobice/concrete5,deek87/concrete5,jaromirdalecky/concrete5