Waxing cut copper doesn’t prevent it from oxidising

When a cut copper block (of any oxidation level) gets waxed, it doesn’t actually get the immunity to oxidation although it clearly should. This bug makes waxed cut copper blocks useless.

To reproduce

1. Place down a bunch of waxed cut copper blocks and a bunch of normal ones
2. wait (or speed up the process using some coding) (Note: randomTickSpeed does not work)
   → Observe that all of them get oxidised eventually