H3. Issue description
Email address is not accepted as a reporter or assignee during the JSON import.
However, Usernames are still allowed to be added as assignee or reporter.

H3. JSON Format used:

{
    "projects": [
        {
            "issues": [
                {
                    "key" : "SF-11223",
                    "reporter": "ssuvarna@atlassian.com",
                   
                    "summary": "test import email",
"externalId": "11223"
                },
                {
                 "key" : "SF-112234",
                   
                    "description": "blablabla",
                    "reporter": "rdey",
                
                    "summary": "test import nickname",
"externalId": "112234"
                }
            ],
            "key": "SF"
        }
    ]
}

Observed that the issue "SF-11223" is created with a reporter as Anonymous. But the issue "SF-112234" was created with the reporter as rdey (correct user)

H3. How to replicate

• Use the JSON format provided above
• Go to Jira settings --> External System import --> JSON import

H3. Expected results:
Issue "SF-11223" is created with the reporter set to shwetha suvarna(ssuvarna@atlassian.com)

H3. Current Result
Issue "SF-11223" is created with the reporter set to Anonymous

Issue only affects JSON import. CSV import works well with E ail address.