Wither blowing up the plot wall

[Teddyon]

Server Implementation

Paper

Server Version

1.21.1

Describe the bug

The Wither is able to break through the walls of a plot and damage the plot boundaries in the process.
No flags have been activated or deactivated on the plot. This is visible in the images below, the dirt inside the plot remains stationary and only the wall is damaged.

To Reproduce

1. Spawn a Wither in a protected area (e.g. within a plot).
2. Have the Wither attack or explode near the plot walls.
3. Observe that the Wither destroys the walls of the plot.
   

Expected behaviour

Plot wall cannot be blown up by a wither

Screenshots / Videos

Error log (if applicable)

No response

Plot Debugpaste

https://athion.net/ISPaster/paste/view/b141067a747c40619d5431f82d33c1ff

PlotSquared Version

PlotSquared-7.3.9-Premium

Checklist

• I have included a Plot debugpaste.
• I am using the newest build from https://www.spigotmc.org/resources/77506/ and the issue still persists.

Anything else?

No response

[OneLiteFeather]

In the past, we did this #1939 (comment) to prevent spawning a wither at all. But this one is known to me for a long time and can reproduce with a sword knockback-ing the wither to the wall.

[OneLiteFeather]

Can't really decide if that is a bug or a missing feature, as spawning a wither was never a thing you wanted in your plotworld in the past. But it can be used for griefing, which is bad.

[PierreSchwang]

Can't really decide if that is a bug or a missing feature, as spawning a wither was never a thing you wanted in your plotworld in the past. But it can be used for griefing, which is bad.

Rather a bug. No entity should be able to destroy block out of the spawned plot.