Bukkit

+ Added persistent interaction protection to complement persistent damage protection

If "prevent-damage.entity" is set to true, pets cannot be damaged at all by hostile players. This can be less than desirable for things like Faction servers, and servers where PVP is used in combination with Pets. This issue will be corrected in the future based on feedback.

Some people may not want damage and interaction protection to persist when mobs aren't leashed. This is a known flaw, and will be fixed in a future revision.