Modify to get source name directly out of source instead of out of so…

…urce.source_data

microsetta_private_api/repo/admin_repo.py

@@ -412,7 +412,7 @@ def get_survey_metadata(self, sample_barcode, survey_template_id=None):
         # TODO: This is my best understanding of how the data must be
         #  transformed to get the host_subject_id, needs verification that it
         #  generates the expected values for preexisting samples.
-        prehash = account_id + source.source_data.name.lower()
+        prehash = account_id + source.name.lower()
         host_subject_id = sha512(prehash.encode()).hexdigest()
 
         survey_answers_repo = SurveyAnswersRepo(self._transaction)