After the research in T160105 has found some analyzers for Ukrainian that are potentially better, we will test them, and analyze to see if they are better or not. If they are, we will file a task to deploy one of them.
If we do decide to deploy one, then back out whatever parts of the Ukrainian/Russian hacks in T146358 that aren't needed anymore.
Reindex task: T162055: Deploy New Ukrainian Analyzer & Re-index Ukrainian Wikis