BUG with AUTOSIMPLIFY() flag

[compsystems]

Hello, the following program with simplify: Maximum must print (x^2-2*x-3) = 0 and not (-2*x-3+x^2) = (2*x+3-2*x-3). The xcas programs are assuming simplify: none.

I think the AUTOSIMPLIFY() xcas command must be incorporated to control the output of the print

Thanks

place manually [shift][cas] simplify: Maximum

PHP Code:

#cas
        test_simplify_flag():=
    BEGIN
        
        local  list0,expr0;
        local x, y;
        assume( x, symbol ); // purge(x);
        assume( y, symbol ); // purge(y);
        
        autosimplify(2); // nop=none, 1=regroup, 2=simplify
        print;
        print("Solving a system of two equations.  
Solve the  following system  [ y=x², y=2x+3 ]");

        list0 := [ y = x^2, y = 2*x + 3 ]; print(list0);

        print(""); print("> substitute y = x² in y = 2·x + 3");
        expr0 := subst(list0(2),list0(1)); print(expr0);

        print(""); print("> substract 2·x + 3");
        expr0 := expr0-(2*x + 3); print(expr0);
        Return "Done";
    END;
#end 


test_simplify_flag(); print (-2*x-3+x^2) = (2*x+3-2*x-3) and not x^2-2*x-3= 0