Bug: Page crash when registered with already used email, but through different method

[tohrxyz]

What is the current behavior?

When you register new account through a different method, but with the same email as already existing account has, user object won't have customer_id property, thus fetching subscription data will go to .../undefined URL path and will crash at least Billing & Environments list pages.

Please provide the steps to reproduce and if possible a minimal demo of the problem** via screenshots or screen recording (you can convert to .gif via Gif.ski).

1. Register account through email & password method.
2. Optional: buy any plan
3. Register new account with the same email, but log-in via Google login.
4. No customer_id in user object -> unable to fetch subscription -> billing & environments list page crash

What is the expected behavior?

I think there are two possible solutions:

• either not allow logging-in with the same email as some account in existence already has
• or fix the bug in in stripe or wherever it lies, that doesn't create new customer_id for this "duplicit" account

What is the motivation / use case for changing the behavior?

It's a really rare case that this would actually happen to someone, but I can imagine that if somebody forgot that they created account through email & password, but then tried to log-in via google-login it could happen.

I'm creating this bug report, so that we know of this problem.