When browsing Reddit this morning with tip of tree WebKit I'm seeing that links I'm clicking aren't being colored as visited. They are correctly being added to history though. If I relaunch Safari and load only http://reddit.com/ then I see the links as colored. If I open a second tab to the same page, it shows no links colored as visited.
Steps to reproduce:
1) Launch Safari to http://reddit.com/.
2) Click on a few links.
3) Open a new tab to http://reddit.com/
The links visited in step 2 are not colored as visited in the tab opened in step 3, but are in the tab opened in step 1.
Created attachment 244950 [details]
Comment on attachment 244950 [details]
Clearing flags on attachment: 244950
Committed r178690: <http://trac.webkit.org/changeset/178690>
All reviewed patches have been landed. Closing bug.