Changelog/2019/July 21

Bug Fixes

 * Fixed being asked to and being unable to approve your own invitation when trying to /coopadd a player to a solo profile
 * Fixed an exploit with the anvil menu
 * Fixed an issue that caused players to get a kick error when trying to join SkyBlock
 * Fixed some double tall slabs dropping null blocks when broken with Silk Touch
 * Fixed being able to combine items in the anvil that aren't normally able to be enchanted
 * Added a check that deletes null items automatically
 * Fixed two issues with Brewing Stands