Updated mediawiki/extensions
Project: mediawiki/extensions/Math  80361d29115df757f99321901da31a3fdae9291d

Avoid calling readFromDatabase in source mode

In source mode there is no database cache,
so we do not need to call readFromDatabase there.

Change-Id: I791eab923f5ed6e0a3e28dbaf49ba1ae8fdb6cdc