If I understand correctly, in the specific case where the sender is the same as the recipient, some graphical elements of the layout should be different, typically the sender should be deleted. I think it is not working properly because I don't see any difference:
If I understand correctly, in the specific case where the sender is the same as the recipient, some graphical elements of the layout should be different, typically the sender should be deleted. I think it is not working properly because I don't see any difference: