fix bug to include source population cohort

Author: tianj7

src/argowrapper/routes/routes.py

@@ -170,6 +170,9 @@ def wrapper(*args, **kwargs):
                 if "cohort_ids" in v:
                     cohort_ids.extend(v["cohort_ids"])
 
+        if "source_population_cohort" in request_body:
+            cohort_ids.extend(request_body["source_population_cohort"])
+
         if team_project and source_id and len(team_project) > 0 and len(cohort_ids) > 0:
             header = {"Authorization": token, "cookie": "fence={}".format(token)}
             url = "http://cohort-middleware-service/cohortdefinition-stats/by-source-id/{}/by-team-project?team-project={}".format(