If I go to bitbucket.org and click to sign in, I am signed in to my Atlassian account, and redirected to home.atlassian.com. If I go back to bitbucket.org, I am not signed in, and if I click to "Sign in" it repeats the process. Somebody from another organization says that they were able to give me access to a repo on bitbucket (presumably with my email address which is associated with my Atlassian account.
What needs to happen to be able to log in to Bitbucket?