smichr/sympy — comment on commit 96ec4488ea2e8b6de4ecfd9087a12d871d951550
File: sympy/polys/galoistools.py line 2237
By smichr:

I modified this further...in order to do a good check of redundancy,
the modulus must be normalized. See
https://github.com/sympy/sympy/pull/681 where your test and all
existing tests now pass.