R506 false positive when raise is used in elif

[nijel]

• Date you used flake8-return: 15th December 2022
• flake8-return version used, if any: 1.2.0
• Python version, if any: 3.9.2
• Operating System: Linux

Description

Linting following code:

def test_2(bar):
    if bar == 3:
        baz = 1
    elif bar == 4:
        raise Exception()
    else:
        baz = 2
    return baz

What I Did

$ flake8 test.py 
test.py:4:5: R506 unnecessary else after raise statement.

The else is necessary as there is additional if before which has side effects and removing else would overwrite that. The code is simplified from real-world code.

[nijel]

The very same issue is with return and R505:

def test_2(bar):
    if bar == 3:
        baz = 1
    elif bar == 4:
        return 3
    else:
        baz = 2
    return baz

$ flake8 test.py 
test.py:4:5: R505 unnecessary else after return statement.