fix - bug of stat type in quota stat service

apps/product/services/quota_stat_service.py

@@ -59,11 +59,8 @@ class QuotaStatsService:
         assigner_stat, created = OrganizationQuotaStats.objects.get_or_create(
             organization=assigner,
             quota=quota,
+            stat_type='distribution'
         )
-        if created:
-            assigner_stat.stat_type = 'distribution'
-            assigner_stat.save()
-        if assigner_stat.stat_type == 'distribution':
         assigner_stat.remaining_amount -= distribution.weight
         assigner_stat.total_distributed += distribution.weight
         assigner_stat.save()
@@ -102,11 +99,13 @@ class QuotaStatsService:
 
         assigner_stat = OrganizationQuotaStats.objects.get(
             organization=assigner,
-            quota=quota
+            quota=quota,
+            stat_type='distribution'
         )
         assigned_stat = OrganizationQuotaStats.objects.get(
             organization=assigned,
-            quota=quota
+            quota=quota,
+            stat_type='distribution'
         )
 
         # create pricing attributes and broker pricing data