Updated mediawiki/extensions
Project: mediawiki/extensions/GlobalUserPage  e060f5733a19735ba8b93c912f17659f75463fa6

Fix ArticleFromTitle hook

It only gets set to an Article object after the hook runs, so
check that it is null, which is the default hook value.

Change-Id: I18792a5babb0d5072c5aac37a5e82976ce0bf8d2