NUnit import only works if the unstructured Test Type is named "Generic"

NUnit import only works if the unstructured Test Type is named "Generic". If the project's Unstructured-kind Test Type has any other name, import fails with

{"error":"Couldn't find generic test type"}

Even when a valid Unstructured-kind Test Type exists on the project.

Steps to reproduce:

• Ensure the project's Unstructured-kind Test Type is not named exactly "Generic" (delete the original one and add a new Unstructured Test Type with a different name).
• Attempt an NUnit import for tests with no matching testKey (Xray needs to auto-create new Tests) using the following endpoint:
  POST /api/v2/import/execution/nunit.
  This can be done with the file and request below:
  nunit_repro_generic_test_type_bug.xml

  curl -H "Content-Type: text/xml" -X POST -H "Authorization: Bearer $token" --data @"nunit_repro_generic_test_type_bug.xml" "https://us.xray.cloud.getxray.app/api/v2/import/execution/nunit?testExecKey=\{key}"
  

Expected result:

• The Tests should be created using the highest-ranked Unstructured Test Type on the project (using the Test Type position on the Test Types screen).
• The error {"error":"Couldn't find generic test type"} should only be returned if the project doesn’t have any Unstructured Test Types.

Actual result:

• 400 Bad Request, {"error":"Couldn't find generic test type"}