empty heading tags in recent activity page

Testing level: Moderate (need small code hack) 1. Create a new course, and turn editing on. 2. In the top section (the one with the default 'News Forum'), create an online-text assignment called 'Test 1'. 3. In the same section, create a forum called 'Test 2' and hide it. 4. In any other section, create a forum called 'Test 3', and a hidden online-text assignment called 'Test 4'. 6. Go to the 'Full report of recent activity' (link in recent activity block) 7. Make sure that: The page looks good There is not empty <h2> tag in the first section containing Test 1 and Test 2 The name of the second section is displayed in an <h2> tag Test 2 and Test 4 have the class 'dimmed' 8. Hack the code of course/recent.php and look for the line if (!empty($activities)) { replace it with if (false && !empty($activities)) { 9. Refresh the recent activity page, and make sure that 'No recent activity' appears centered on the page. 10. Check step 7 and 9 with a few other themes.