If I have an explorer node selected, and I move 
focus to the editor, then (single) click back on 
the selected node in explorer, it interprets 
this as Rename. I suggest it should not, *if* 
window focus changes as a result of the click

The problem is that the user needs to click once 
in the explorer window just to return focus to 
it. The click should not be "overloaded" to add 
additional rename behavior.

Although they can think "I'll click on 
background whitespace, because I know that 
that'll return focus to the node, without 
renaming it", that isnt exactly intuitive. Im 
fairly experienced with Netbeans but I make this 
mistake often.