Regression: Subfunctions not cleared upon function reload

[Moritz Borgmann]

Let's say I have the following files:

============ testfun1.m ============
function testfun1 ()
testscript;

function testsubfun ()
disp ('testsubfun in testfun1');
==================================

============ testscript.m ============
f = str2func ('testsubfun');
f ();
==================================

This gives
octave:5> testfun1 ()
testsubfun in testfun1

Now if I comment out the testsubfun subfunction in testfun1.m and 
save the file, Octave still gives exactly the same result. Instead, 
it should bail out and complain that testsubfun is not defined. It 
seems like subfunctions are not properly cleared from the symbol 
table upon reload of a function.

-M