This bug has been in all the -6.5svn builds, through the current one.
With the wxPython GUI running, press ctrl-shift-r to select a raster map
for display. A warning message box pops up telling you that there is no map
name entered. That's true because all C-S-r is supposed to do is present the
dialog box in which the raster map name is to be entered. Clicking 'OK' on
the warning box removes it.
Using the analogous command, C-S-v to select a vector map for display does
not produce the warning.
It would be nice to have the raster shortcut also not display the warning.
Rich