Syntax error on "a === b"

[tueda]

mathicsscript does not handle === and gives a syntax error. (It works with mathics.)

$ mathicsscript --no-completion

Mathicscript: 3.0.0, Mathics 2.2.0
on CPython 3.9.4 (default, Apr  7 2021, 05:45:11)
using SymPy 1.8, mpmath 1.2.1, numpy 1.20.3

Copyright (C) 2011-2021 The Mathics Team.
This program comes with ABSOLUTELY NO WARRANTY.
This is free software, and you are welcome to redistribute it
under certain conditions.
See the documentation for the full license.

Quit by evaluating Quit[] or by pressing CONTROL-D.

In[1]:= a === b
Syntax::sntxf: "a " cannot be followed by "= b" (line 1 of "<stdin>").

[tueda]

I found a similar one in a closed issue: #18. Maybe a regression?