0_o wat

The code bugdroid uses to get recently-landed CLs from Gerrit is here:
https://cs.chromium.org/chromium/infra/infra/services/bugdroid/gerrit_poller.py?q=gerrit.GetLogEntries&sq=package:chromium&l=191
https://cs.chromium.org/chromium/infra/infra/services/bugdroid/gob_helper.py?type=cs&q=GetLogEntries&sq=package:chromium&l=587

Which hits the https://gerrit-review.googlesource.com/Documentation/rest-api-changes.html#list-changes API with a query of the form:

q=status:merged+since:XXXX-YY-ZZ

Unfortunately, the 'since' operator isn't documented at https://gerrit-review.googlesource.com/Documentation/user-search.html#_search_operators, and the hashtag feature is rather new, so its behavior may have recently changed (or never worked as expected).

Ok, "since" is documented, it's just alphebetized under "after" so I missed it. Looks like it shows changes *modified* after the given time, not *submitted* after the given time. It makes sense that we basically never see this get confused, since no one goes through and makes substantive changes to their CLs after merging them, but apparently hash-tagging does it.

This would be trivially fixed by addressing 696706; I doubt we'll address it prior to that, so marking blocked.