AllItemsMini – Mini All Items Challenge

[1.3.1] - 2025-12-18

Fixed

• CRITICAL: Fixed item duplication bug where items were duplicated upon submission due to the offhand item not being removed before restoration in the next tick.
• CRITICAL: Fixed armor piece swap bug where armor pieces would swap with equipped armor and disappear instead of being properly submitted. Items are now immediately removed from the offhand before restoration to prevent Minecraft's auto-equip behavior.
• Fixed race condition where players disconnecting or changing their offhand between submission and restoration could cause issues. Added online check and offhand state validation before restoration.
• Removed redundant null checks for ItemStack instances (modern Bukkit never returns null, only AIR).
• Fixed encoding issue in code comment.