Differentiate between first time test execution import and next time test execution import in xray

[Indiranellutla]

When the junit xml is imported into the xray using https://xx.xx.xx.xx/rest/raven/1.0/import/execution/junit?testExecKey=XRAY-XXXXX

for the first time the expected response is 

{    "testExecIssue": {        "id": "410972",        "key": "XRAY-308121",        "self": "https://xx.xx.xx.xx/rest/api/2/issue/410972"    },    "testIssues": {        "success": [            {                "id": "410981",                "key": "XRAY-308130",                "self": "https://xx.xx.xx.xx/rest/api/2/issue/410981"            },            {                "id": "410982",                "key": "XRAY-308131",                "self": "https://xx.xx.xx.xx/rest/api/2/issue/410982"            }        ]    }}

Here the response has testIssues list created. This is as expected because new tests are created and hence testIssues have the list. But the same test(with the same classname+name) combination is imported again for the same test execution, the expected response should not have testIssues list since no new issues would be created.

The response should just have

{    "testExecIssue": {        "id": "410972",        "key": "XRAY-308121",        "self": "https://xx.xx.xx.xx/rest/api/2/issue/410972"    }

Please correct me if my understanding is not correct.

But whenever an import is made, I get the response with testIssues tag listing the same issues. How do I differentiate between the first time import and next time import??