[R-SIG-Mac] undo in Editor does not truly "undo"

[Denis Chabot]

Hi,

This applies to the new R gui for Panther.
I often lose changes I make to my text files (R programs) in the gui 
editor. I appreciate the fact that selected lines are "sent to the 
console" when you press command-return. Much faster than copy and paste 
from my external text editor, TextWrangler, to the console, which I 
must continue to do on my PowerBook running 10.2.8.

But sometimes I slip, and do not press command, or I forget that lines 
are selected and start typing. In both cases the selected lines vanish. 
When this happens you should be able to fix the problem by doing Undo. 
But in the R editor, Undo brings me back to a previous state, I'm not 
sure which (when I opened the file?), and I have to add by hand the 
lines that have vanished plus the changes I had made since that "saved" 
state.

I am using 1.02-pre build 879

Is this happening to others as well?

Thanks,

Denis