following a signup link does not clear existing user session

[glassworks-projects]

Describe the bug
If I am already logged into my app as account A, and on the same machine + browser I follow a signup link and sign up with account B, my session with account A is preserved and I am logged in with user A.

To Reproduce
Steps to reproduce the behavior:

• Login to my app
• While logged in, follow a signup invitation on another email address

Expected behavior

• User session is cleared and a new session with the new user info is created

Screenshots

Desktop (please complete the following information):

• OS: MacOS
• Browser: Arc

Additional context
Add any other context about the problem here.