"Doesn't have access" error message displayed for JSM portal customers

Issue Summary

<User> doesn't have access error message displayed for JSM portal customers when accessing Confluence KB space with unlicensed access enabled

Steps to Reproduce

1. From a JSM project: Project settings->Knowledge Base, link a KB space with Restricted access. This enables all logged-in users (for this JSM project) to view articles in the space, without a Confluence license.
2. Add a customer to the JSM project. Ensure this customer is on an Atlassian account and does not have any Confluence access.
3. Open an Incognito browser session and directly access any unrestricted page in the KB space.
4. On the login screen, enter the customer account credentials and continue. The following error message is displayed:
   
5. When you re-enter the URL, the KB page is displayed without any error.

Expected Results

• The page should be displayed immediately after entering the customer's account credentials.

Actual Results

• The "No access" error message is displayed after entering the customer's account credentials. To display the page, you need to re-enter the URL and press enter. Subsequent page accesses on this browser session work without any errors.

Workaround

• Re-enter the URL and press enter to access the page.