Fix potential NoneType access in aiokafka driver

[GodTamIt]

Description

This logic is likely meant to be a boolean OR not AND, since the first check in the statement checks for assignment to be None.

[wbarnha]

Genuinely surprised how such a simple thing got overlooked for so long. Makes sense to change it to this.

What caused you to stumble upon this, out of curiosity @GodTamIt?

[wbarnha]

Ah crud... looks like I need to go clean up the pyproject.toml file. I promised myself I'd finish switching things over eventually, but now my hand is forced.

[GodTamIt]

Genuinely surprised how such a simple thing got overlooked for so long. Makes sense to change it to this.

What caused you to stumble upon this, out of curiosity @GodTamIt?

@wbarnha I was running the test in #568 for long enough that it hit this edge case.

It was quite hard to reproduce actually.

[wbarnha]

Genuinely surprised how such a simple thing got overlooked for so long. Makes sense to change it to this.

What caused you to stumble upon this, out of curiosity @GodTamIt?

@wbarnha I was running the test in #568 for long enough that it hit this edge case.

It was quite hard to reproduce actually.

Thank you for finding this! I'll merge it ASAP.