It does work after I disable all of the SSO plugins I had enabled. I will try going through them one by one to determine which sso plugin it actually was and let the developer know.
I have opened 2 tabs in a browser.
1 window, I have opened the new Topic button, and composing.
Another window, I just clicked the logout button.
I came back to the first window, and added some more content and I'm able to post the data.
We should have middle ware to handle all the requests for authentication.
Please submit a bug.
When you hit F5 in the first window you'll be logged out.