Merge branch 'jojo/investigation-serializer-depth' into 'staging'

Increase depth of investigation case serializer recursive depth

See merge request !39

apps/cases/serializers.py

@@ -66,7 +66,8 @@ class InvestigationCaseSummarySerializer(serializers.ModelSerializer):
             "author",
             "created_at",
         ]
-        depth = 1
+
+        depth = 2
 
 
 class InvestigationCaseSerializer(serializers.ModelSerializer):