Provide a better message to customers when logging in to multiple Google Accounts on one Browser session

here is the use case:

1. Customer currently logged in Chrome with both work and personal accounts - 2 separate email addresses though
2. Has a bitbucket account for both of these emails
3. Logged in with Google I realized I was with the wrong Bitbucket account at the moment.
4. jumps back in my browser history and Single Sign On presented me with choosing which Account I would like to log in with, they choose the second account BitBucket reacted with a bit of a wait and presents an error code to the user that really doesn't explain to them what went wrong.

Can we please update that error message to say something like "this is not supported please refresh the session and start over"