[docs] [issue42391] Clarify documentation of TestCase.assertIs

Terry J. Reedy added the comment: New changeset bd8c22e1fa8f8f6e31ee083a8b9321a2c324f02f by Ram Rachum in branch 'master': bpo-42391: Clarify documentation of TestCase.assertIs (GH-23348) https://github.com/python/cpython/commit/bd8c22e1fa8f8f6e31ee083a8b9321a2c32... ---------- nosy: +terry.reedy _______________________________________ Python tracker https://bugs.python.org/issue42391 _______________________________________