Multiple GSuit accounts get logged out and then share state once logged back in

[pbarclay]

• Application version: 3.1.0
• OS: Windows 10

Prerequisite
Have a free Gmail account
Have 2 GSuit accounts with different email addresses

Steps to Reproduce:
This is how I use this so it may be reproduceable with multiple free account or multiple Gsuit account.

1. Add Gmail as an app
2. Sign in with a free gmail account
3. Add Gmail as an app
4. Sign in with GSuit account
5. Add Gmail as an app
6. Sign in with a different GSuit account
7. Use the application for several days
8. Observe that you get logged out of all gmail apps
9. Log back into the first Gmail account
10. Observer that all Gmail accounts are now logged in as that user and the only way to get all three back is to remove all gmail accounts and start again.

Expected Result
Gmail should remain logged in until explicitly logged out of and multiple accounts should maintain compartmentalisation between future logout and logins