simplify and latex_name

edit

In a notebook (with typesetting enabled), whenever I apply simplify to a simbolic function, the result is expressed in terms of the identifier of the function, rather than its latex name.

For example,

var('x')
my_func = function('df',x,latex_name='\Delta f')
my_func

returns ?f(x)

but

my_func.simplify()

returns df(x)

Is there any retain the latex name throughout simplification?