old variables listed by "who" after reentering debug mode

[Jose]

Hello.

I found a strange behavior of "who" while using variables in debug mode

Variables created in debug mode are listed by "who" after leaving and 
re-enteing debug mode. Is this correct? At least it is confusing.

To reproduce, first create a function with a keyboard command
---------
function test()
keyboard;
---------

Then, from the command line:
-------------
octave:1> test
stopped in /home/jose/PhD/SVN/octave/rssi_modelling/test.m at line 2
2: keyboard;
debug> whos
debug> a=1;
debug> whos
Variables in the current scope:

   Attr Name        Size                     Bytes  Class
   ==== ====        ====                     =====  =====
        a           1x1                          8  double

Total is 1 element using 8 bytes

debug> dbquit

octave:1> test
stopped in /home/jose/PhD/SVN/octave/rssi_modelling/test.m at line 2
2: keyboard;
debug> whos
Variables in the current scope:

   Attr Name        Size                     Bytes  Class
   ==== ====        ====                     =====  =====
        a           0x0                          0  unknown

Total is 0 elements using 0 bytes

debug> clear all
debug> whos
Variables in the current scope:

   Attr Name        Size                     Bytes  Class
   ==== ====        ====                     =====  =====
        a           0x0                          0  unknown

Total is 0 elements using 0 bytes

debug>
----------

I am using octave 3.6.1

BR
Jose