Right-clicking on an image and selecting "Inspect Element" crashes WebKit r40663. Repeatable every time on my iMac G5 running 10.4.11 and on my Macbook running 10.5.6. On both, the crash is in WebCore::RenderObject::absoluteQuadsForRange.
1) Start WebKit
2) Navigate to http://www.google.com.au/
3) Right-click on the Google logo
4) Select "Inspect Element"
Crash reports to come.
Created attachment 27378 [details]
Crash report on 10.4.11
Created attachment 27379 [details]
Crash report on 10.5.6
Bringing up the Inspector (Command-I) and manually focusing on the image with the "select an element in the page to inspect it." button also crashes, in the same place.
So too does navigating the DOM tree in the inspector pane and selecting the <img> element.
Reported by @webkit on Twitter <http://twitter.com/webkit/status/1191086640> as fixed in r40777. After this update, I no longer see the crash.