OAuth Problems

[PropGit]

We need to disconnect the forced-exclusive nature of logging in with an email address as 1) a localized account, and 2) an OAuth account.

• If a local account is created in BlocklyProp with an email address that happens to be that of a Google account, then later trying to "Log in using Google" causes a fatal error:
• If the user first tries to "Log in using Google" (successfully) and then later decides to create a local account using the same email address that happens to be from the Google account, he gets an "Email already used" error.

The bug noted in the first bullet needs to be addressed, regardless, but can we solve this by making it support both methods of logging in, with the same email account so as to avoid customer issues? We don't understand why the system seems to check that a local account was already created... can't it just treat them as one and the same?