Updated mediawiki/extensions
Project: mediawiki/extensions/EventLogging  41a82c4643f452d3704708008037afe30c4eb310
null
More ad-hoc handling of metadata.

Fixes I found in production. I'll refactor this comprehensively over the
weekend.

Change-Id: Ie37a8cdb8912bfa07fbdeadd214fb4df3a4a7222