Star count in project partials doesn't update after toggling star
Reported in https://github.com/gitlabhq/gitlabhq/issues/9834
star count in project partials will not update after toggling star,
I think that caused by
https://github.com/gitlabhq/gitlabhq/blob/master/app/views/shared/projects/_project.html.haml#L8
= cache [project.namespace, project, controller.controller_name, controller.action_name, 'v2.2'] do
which didn't include project.star_count in cache.