Suspicious sand visually retains its "dusted" state after rejoining worlds

The Bug:

Suspicious sand visually retains its "dusted" state after rejoining worlds.

Steps to Reproduce:

1. Place down some suspicious sand and obtain a brush.
2. Begin brushing the suspicious sand until it reaches a "dusted" state of "3".
3. Quickly leave the world, reopen it, and look at the suspicious sand.
4. Take note as to whether or not suspicious sand visually retains its "dusted" state after rejoining worlds.

Observed Behavior:

Suspicious sand visually retains its "dusted" state.

Expected Behavior:

Suspicious sand would not visually retain its "dusted" state after rejoining worlds.