[Question] Serialization result of DBNull.Value should be empty object({})?

[filzrev]

Currently, DBNull.Value is serialized to empty object string({}).

There is dedicated code path for DBNull.Value on FullObjectGraphTraversalStrategy.
But it seems not be used. (Because value.IsDbNull() always returns false, And ther is no break statement)

YamlDotNet/YamlDotNet/Serialization/ObjectGraphTraversalStrategies/FullObjectGraphTraversalStrategy.cs

Lines 141 to 144 in 7bed5cf

	if (value.IsDbNull())
	{
	visitor.VisitScalar(new ObjectDescriptor(null, typeof(object), typeof(object)), context, serializer);
	}

Is this current behavior is working as expected?

Note

Returning empty object is same behavior as System.Text,Json. (https://github.com/dotnet/runtime/issues/418)