Updated mediawiki/extensions
Project: mediawiki/extensions/Flow  17d2624afdfa3debd5f0d0e1c70e740c0ef61ec3

QA: Fix browser test "not watching my new Flow topic"

The unwatch star doesn't have .mw-ui-quiet.

Change-Id: I742dac4234c252fca88d5ae0b2238ad5b295414b