I am trying to debug a hook from title, here it says http://api.drupalhelp.net/api/rules/rules.api.php/function/hook_default_rules_configuration/7.2
"This hook is invoked when rules configurations are loaded. " but not sure when this is happening? I am clearing cache, clearing Rules cache from UI, but seems like xdebug breakpoint never stops inside. Maybe I need somehow to trigger it, but not sure how?