Steps to Reproduce:
1. Put a lodestone on the ground.

2. Use a command_block or structure_block to copy the lodestone somewhere.

3. Take a compass and click on the cloned lodestone.
Observed Results:

The compass will link to the original lodestone.
Expected Results:

The compass should link with the lodestone where you clicked.

NOTE:

if you use structure_block and you break the original lodestone.

The cloned lodestone will have no purpose.