RUF015 auto fix changes behavior

[jc-louis]

Using ruff v0.0.280 with --fix the rule RUF015 changes code behavior:

# before RUF015 auto fix
def fct(a: list, b: list):
    return a + [ele for ele in b if ele][:1]


print(fct([1], [0]))  # [1]


# after RUF015 auto fix
def fct(a: list, b: list):
    return [*a, next(ele for ele in b if ele)]


print(fct([1], [0]))  # raises StopIteration

[charliermarsh]

We should probably remove the slice cases here.