[dataformats][serializers] Fix error thrown from latest version of DRF

beat/web/dataformats/serializers.py

@@ -52,7 +52,8 @@ class BaseSerializer(DynamicFieldsSerializer):
     name = serializers.CharField(source="fullname")
     accessibility = serializers.SerializerMethodField()
 
-    class Meta:
+    class Meta(DynamicFieldsSerializer.Meta):
+        fields = '__all__'
         default_fields = ['name', 'short_description', 'accessibility']
 
     def get_accessibility(self, obj):