Updated mediawiki/extensions
Project: mediawiki/extensions/Flow  62fc8d3fcdf1d67eedc56a9eda7f8f7384bdcb2b

QA: Fix failing Firefox browser tests

* Fix 'Create new topic logged in.Topic Actions' which fails when
the top post has been moderated.

Change-Id: I57840eb8231d99ede26449615ea7ec1200de2fc6