Is Private Browsing broken in Safari 5.1.4? From the release notes for Safari 5.1.4:


Allow cookies set during regular browsing to be available after using Private Browsing


What?

Doesn't that mean, to give an example, that if I go to Amazon in Private Browsing mode, Amazon will still know who I am, and all the things that I look at will appear as "recently visited" when I go to Amazon later (even on a completely different computer)?

If so, what good is Private Browsing mode?

Am I missing something here?



Note that secretly buying gifts as a surprise for loved ones is the "official" example often given for why one would want Private Browsing. Of course, If I actually buy them, I will have to tell Amazon about it, and it will enter my profile, but all the browsing before that could be hidden.
There was a bug that prevented cookies set begore going into safe mode from working again after the safe period had ended. 

Imagine a truck with four wheel drive and when you were done and switched back to two wheel mode. It would be a problem if the indicators said two wheel but four was still engaged.

This text you quoted indicates the getting out of safe mode was tweaked so more things work again post safe mode.