Respawn Anchor plays the "Respawn Point set" sound when right-clicked even when its already your respawn point

Description

When you right-click to set a respawn anchor as your spawn point, it plays a sound. If you right-click the same anchor again, it plays the sound again, even if it is already your respawn point.

Steps to Reproduce

1. Place a Respawn anchor
2. Charge it with glowstone
3. Right-click to set it as your respawn point
4. Right-click it again.

Expected Result

The Respawn Point set sound will not play because it's already your spawn point.

Actual Result

The sound does, in fact, play