Updated mediawiki/extensions
Project: mediawiki/extensions/Echo  bca96e30ed770d5c2bccb864d63f39c979210354

Attempt to fix 'welcome notification' exception

It throws very randomly in job queue for enwiki, about 15 exceptions in 4 hours

Bug: 53425 

Change-Id: I1d7e45e33ffb8df1a91183e263daf007b0affc7f