That can also happen during code review. Granted, it's asynchronous, but that might be seen as a boon by some -- especially if there's a language barrier.

You have to do code review right, i.e. a) no judgement of the person, b) no friggin' code review in-person meetings(!), and c) must be automated via some system (e.g. Gerrit), and d) the reviewer must also be willing to yield on non-critical issues (such as minor formatting, naming, etc.). Ultimately you also need a team technical lead to make the call in case of unresolvable disputes. (If the lead's code is being reviewed then it behooves them to reason convincingly for their own position, concede when shown wrong and try to remain as impartial as possible. IME as a team lead, admitting when you're wrong is an incredible way to build trust.)