Either this is a bug, or a feature that is not available in your version, but in R # 9.2, behavior is what you expect.
So, if you are in R # 10, you can try to lower your current license (or upgrade if you are in R # with a lower version, IMHO, upgrading to a higher version is free if I remember well).
By the way, if MuhKuh is right on R # 10, then you can select " <YourType> " if there is no hidden configuration field to return to the inherited behavior.
Check here for all possible versions.
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