Events become visible on popstate

[muan]

The following isn't being reliably run on popstate events.

github-dashboard/dashboard.js

Lines 140 to 145 in 10d72a3

	function specifyTimelineEvents() {
	const dashboard = document.querySelector('#dashboard .news')
	if (!dashboard) return
	const observer = new MutationObserver(addMoreSpecificIdentifiers)
	observer.observe(dashboard, {subtree: true, childList: true})
	}

[muan]

I've not seen this again.