If the job has "aggregated test result" configured, the column displays the correct test results, but the link seems to go to $job/lastCompletedBuild/testReport/ instead of $job/lastCompletedBuild/aggregatedTestReport/. Hence, if a user clicks the link, he/she arrives at the build page instead of the result page and has to navigate one step further. It's not a big deal, but would be nice to have this fixed. I guess it's a bit similar to JENKINS-9637.