Sculk can spread into spawn protection

The Bug:

Sculk can spread into spawn protection.

Steps to Reproduce:

• Start a server, join it, give operator permissions to yourself, and switch into creative mode.
• Set the world spawn to your current location and locate the edge of spawn protection.
• Place a sculk catalyst adjacent to, but not inside of spawn protection.
• Obtain a sword along with some cow spawn eggs and switch into survival mode.
• Remove your operator permissions, and grant anyone else with them in order to activate spawn protection.
• Summon some cows near the sculk catalysts and kill them.
• Watch closely as the sculk spreads.
• Take note as to whether or not sculk can spread into spawn protection.

Observed Behavior:

Sculk can spread into spawn protection.

Expected Behavior:

Sculk would not be able to spread into spawn protection.