Re: [support] page-init JS (setting window.location.hash) behaves differently if JS-aggregation is ON vs OFF. is it load-order, or something else?

It appears that LABJS is significant. drush dis labjs fixes the problem; @ document.ready, the anchor-tag in question is now loaded correctly -- and the default 'pane' is correctly opened -- in either the js-agg ON or OFF case. that suggests that the LABJS function is stripping the anchor tag iff the JS is not also aggregated. investigating further.