[17:22:57] <Yaron>	 Was there just a big change to MediaWiki's query handling? Some time between Feb. 13-20 or so, the code in the WatchAnalytics extension started to fail during validation - I think because of a DB query that contains a SELECT within a SELECT. (The validation warning is unhelpful, so I'm not entirely sure, but some trial-and-error seems to point to that.)
[17:23:36] <Yaron>	 I'm talking about the "old" query handling, not the new "query builder" stuff.
[17:24:43] <Yaron>	 You can see the code that seems to cause the problem in the combination of these two lines:
[17:24:43] <Yaron>	 https://phabricator.wikimedia.org/diffusion/EWAN/browse/master/includes/PageWatchesQuery.php$59
[17:24:45] <Yaron>	 https://phabricator.wikimedia.org/diffusion/EWAN/browse/master/includes/PageWatchesQuery.php$172
[17:56:43] <Lucas_WMDE>	 could be https://phabricator.wikimedia.org/T318845 ?
[18:19:18] <Yaron>	 Lucas_WMDE: that must be it - thank you!