adapt quality calculation for imaging compression pipeline

atdb/taskdatabase/services/calculated_qualities.py

@@ -198,8 +198,8 @@ def calculate_qualities(task, tasks_for_this_sasid, quality_thresholds):
         # update the overall quality of all tasks for this sas_id
         calculated_quality_sasid = calculate_quality_sasid(task, tasks_for_this_sasid)
 
-        # store the result in task.calculated_qualities (not yet saved in the database)
         if calculated_quality_sasid:
+            # store the result in task.calculated_qualities (not yet saved in the database)
             qualities['per_sasid'] = calculated_quality_sasid
 
             # store the result in the activity, and save it