Redmine

I'm running trunk as of a month ago. It seems that the repository data only refreshes when specific actions are visited. The consequence is that until the "Repository" tab is visited, the "Activity" tab will be outdated. Stupid managers will view the latter and think that nothing is happening in the code base. What other strategies are available to keep the repository data current? Does Redmine come with a script to refresh this that I could run as a cron job or a post-receive hook (git)?