Actually I do not really know what the Radius means/does.
I aggree that the changing of the numbers (values) of the Radius is not consistent with with the changing of for instance the size of a Mesh.
To be honest, I think the Radius staying the same when scaling in Object Mode, until you Apply the Scale seems natural to me, but this isn’t consistent with the rest of Blender…
And the Object Properties of Curves not updating at all is just crazy.
There is definitely a bug, the question is only what is wrong and what is correct…
