Values of org-indirect-buffer-display

["Chris Randle" <chris@amlog.co.uk>]

I'm new to emacs and org-mode, so please forgive me if I've missed
something fundamental.

I've been using org-tree-to-indirect-buffer bound to the default C-c C-x
b, and saw in the help that you can modify org-indirect-buffer-display.
In my .emacs file, I've got the following:

(setq org-indirect-buffer-display 'new-frame)

When I hit C-c C-x b on a subtree, I do indeed get a narrowed subtree in
a new frame (call it frame 2). When I go back to the original frame and
repeat for a different subtree, that works too, but the buffer in frame
2 is killed. The help for org-tree-to-indirect-buffer says that a C-u
prefix will keep the last buffer, and this works as stated: the buffer
in frame 2 is then kept.

So my question: if C-u controls the persistence of the previous buffer,
what is intended difference between new-frame and dedicated-frame?

I had expected C-c C-x b with new-frame to work the same as C-u C-c C-x
b with dedicated-frame, and I feel that new-frame is redundant. I don't
see why anyone would want to keep opening new frames whilst killing the
indirect buffers in the previous ones.

-- 
Chris Randle