multi line assertion function replaced with invalid code

[Mattwmaster58]

Consider the following code:

import unittest


class Tests(unittest.TestCase):
    def test_1(self):
        self.assertIn('multline line assert',
                      'multline line assert')

This is the output:

import unittest


class Tests(unittest.TestCase):
    def test_1(self):
        assert 'multline line assert' in
                      'multline line assert'

This is the correct output:

import unittest


class Tests(unittest.TestCase):
    def test_1(self):
        assert 'multline line assert' in 'multline line assert'