On the wikipedia.org portal page - in the search box - there is a language selection dropdown. Currently, if the user changes the default language in that search box (it defaults to whatever the browser's preferred language is set as) - we don't have a way to track or log that change.
This ticket is to update the eventlogging schema and collection to take into account when a user changes the language selection dropdown and completes a query from the wikipedia portal page.
We want to know:
- if the user changed the language
- what they changed the language to
- if they did a query and then went to a search result or article in that language
