Changing UI language opens the wrong page after a partial page load

[osma]

URL address of the page where you encountered the problem

https://test.dev.finto.fi/yso/en/page/p19378

Description of the problem

1. In Skosmos 3, go to the YSO concept page for "cat" in English, i.e. https://test.dev.finto.fi/yso/en/page/p19378
2. Click on another concept in the sidebar hierarchy, e.g. "European shorthair" (this will show the new concept page using partial page load)
3. Change the UI language to Finnish by clicking on "suomeksi"

This will show the page for the "cat" concept (kissa) in Finnish, which is not expected, since we were on the concept page for "European shorthair".

The vocabulary home page behaves in a similar way:

1. Go to the YSO front page in English, i.e. https://test.dev.finto.fi/yso/en/
2. Click on a concept in the hierarchy, e.g. "aapa mires" (this will perform a partial page load)
3. Change the UI language to Finnish by clicking on "suomeksi"

Again the new concept page (aapa mires) is lost and instead the user is taken back to the vocabulary home page (this time in Finnish).

Additional information (e.g. screenshots) about the problem

I think this happens because the links to change the UI language are just regular HTML links. The partial page load doesn't change their target URLs, so they will keep pointing at the original concept page.

This doesn't happen in Skosmos 2, because when performing the partial page load, the UI language links are rewritten as well by replacing the language links with those extracted from the dynamically loaded DOM:

Skosmos/resource/js/scripts.js

Lines 163 to 168 in 6073feb

	function updateTopbarLang(data) {
	var $language = $('#language');
	$language.empty();
	var langBut = $('#language', data).html();
	$language.append(langBut);
	}

The browser you used when the problem appeared

Firefox