On the german it news site golem.de some long titles have a wrong line break. As all other webbrowsers (also gtkwebkit) don't show this problem it has to be a qtwebkit bug (and this might be only one of the examples of a fundamental problem) See screenshot: http://imgur.com/ErSSfOT This shot was taken with rekonq 2.4.2 and qtwebkit 2.3.3 reported User Agent is (Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.21 (KHTML, like Gecko) rekonq/2.4.2 Safari/537.21)
The Qt port has been removed from WebKit, resolving this bug.