Updated mediawiki/extensions
Project: mediawiki/extensions/MediaWikiChat  7c4c7843ded0643af74842efe239e4261e74db70

Try to fix users not appearing

This appears to be tricky problem, I do not anticipate this to be the
final patch for this, but it should help.

Brickimedia/brickimedia#157

Change-Id: Ic96fe42fbe3b4e57b40a8edcbece707668753c53