Users with only Confluence Access got Redirected to JIRA Dashboard

Summary

User who are given access to Confluence only (while there are JIRA in the instance), will be redirected to JIRA Dashboard/Customer Portal (if the instance has JIRA Service Desk) when they try to access the instance's URL

Environment

JIRA v1000.1010.1

Steps to Reproduce

1. Create a user and give Confluence access only (in default environment, include the user in "confluence-users" group only)
2. login as the user
3. Try to access the instance's URL (<instance-name>.atlassian.net)

Expected Results

User redirected to Confluence (<instance-name>.atlassian.net/wiki/discover/all-updates)

Actual Results

User redirected to JIRA (<instance-name>.atlassian.net/secure/Dashboard.jspa) as a logged out user (can see log in button on top right) OR to JIRA Service Desk customer's portal

Notes

This happened simultaneously with the appearance of this bug:

• Unable to choose default homepage anymore in Atlassian Cloud

Workaround

• Click on the "Application Navigator" and select Confluence. User will be redirected to Confluence as a logged in user immediately. (If redirected to JIRA Dashboard)
• Navigate to <instance-name>.atlassian.net/wiki (If redirected to Customer Portal)