"Fetch affected paths on demand"

I am new to subclipse and have a basic question: how do I disable
fetching the "affected paths" in the history view? I want to switch it
off because it can be quite slow ('svn log -v' vs. 'svn log') and I like
to keep the history view linked to the editor.

I came across the option "Fetch affected paths on demand" in the
preferences but it looks like subclipse always requests the affected
paths regardless of this option.

So my questions are:

* What does "Fetch affected paths on demand" do?

* How can I disable fetching affected paths in the SVN history view?

TIA.

-- 
Bernd Rinn