2月29日上线：修复在脚底放方块的hack

src/main/java/cn/nukkit/level/Level.java

@@ -2894,7 +2894,7 @@ public Item useItemOn(Vector3 vector, Item item, BlockFace face, float fx, float
                 bb.expand(-0.01, -0.01, -0.01);
                 if (hand.getBoundingBox().intersectsWith(bb)) {
                     // This is a hack to prevent the player from placing blocks inside themselves
-                    return Item.get(10000);
+                    return new Item(10000);
                 }
             }
         }