Fixed issues with ProtectionStones import system, which caused issues while trying to import a lot of protections. Now it's made to asynchronously (on most part) import the protections to prevent crashes. This process takes time to ensure that it's being properly done.
Fixed issue with merged protections, which had a chance to generate a loop between protections which gave issues on the plugin.
Fixed issue with merged protections, where child protections weren't properly initialized, and were shown on inventories like on `/pb list` and `/pb merge`.