Jira import creates two JSD portal-only customers with the same email address

Symptoms

• Affected sites will see two portal-only customers with the same email address in site admin under /admin/jira-service-desk/portal-only-customers
• Duplicated customers will be unable to log in or raise requests

Sites affected

• Any site that performed an import between April 17th and May 25th, 2018 that contained portal-only customers in the import file, and had portal-only customers existing on the destination site of the import may be affected by this bug.

Solution

• Deleting one of the duplicated users will allow the remaining user to log in again.