A permanent variable can be redefined without error message.
Reported by Calixte DENIZET
-- Bug description --
A permanent variable can be redefined without error message.
-- Scilab error message --
-- How to reproduce the bug --
%i = 1234 //not possible: an error is displayed.
%i(1,1) = 1234;%i //%i is now equal to 1234 !!