smichr/sympy — comment on commit 1927532130987ce30c12590fb4a3859183ea05c7
File: sympy/core/tests/test_exprtools.py line 118
By smichr:

I replaced it with this:

```python
>>> e = Mul(2, 1 + x, evaluate=False);assert e.xreplace({}) == e
Traceback (most recent call last):
File "", line 1, in
AssertionError
```