I'm working with a CVS filesystem.  I had a file
which was modified locally, but another more
urgent change needed to be committed.

So I renamed the file in the Explorer tree; it
showed it as Local and the original file
reappeared with Needs Update status.  So I did a
CVS Update, then edited the file and committed the
change.  Having got that out the way I wanted to
return to what I'd been working on.  I duplicated
the changes in my Local version, then deleted the
Up-to-date copy (which returned to Needs Update
status) and renamed the Local file back to its
original filename.

Unfortunately, I'm now left with two identically
named nodes in the Explorer tree for the file, one
with status "Needs Update; 1.51" and one with
status "Locally Modified; 1.51".  Doing a Refresh
or Refresh Recursively in either the Project or
Files views fails to remove the extra node.  I
tried performing an Update on the one which says
it needs it, but that made no difference either. 
In the end, the only way I could find to return
things to normal was to exit Netbeans and restart it.