Rigid body and bezier curve not working

I have a bezier curve that uses a 2nd curve as the bevel object. It creates the shape as expected. However, this is in a physics simulation and adding a rigid body modifier isn’t an option unless I convert it to a mesh. But then I’m stuck not being able to modify, or edit, the original bezier curve because it has been converted. Is there another way to do this?

Couldn’t you just duplicate the curve, convert one to mesh and keep the other as backup?

I had considered that, but thought a better way may exist.