Fixed issue with blocks duplication, where, on laggy servers or with lot of protections, protections were able to be deleted twice.
Fixed issue with blocks duplication (vanilla items), where fast tools were able to duplicate blocks using the small amount of time where the block was visible again.
Fixed issue with guard system, where the values in the guard system weren't loaded, leaving the protection unguarded. Values for the guard system on specific protections may have been resetted due this issue. If you've used the guard system, check protections that were guarded to see if they are still guarded or not.
Fixed issue where players were able to place protections over other protections due missing checkings after the API implementation.
Fixed issue on players' search list inventory, where staff in vanish were shown on the inventory. Now they aren't shown based on if the player can or not see, value returned by the internal API from Spigot.