SPIGOT-4298: Block command sender returns wrong block

nms-patches/TileEntityCommand.patch

@@ -7,7 +7,7 @@
 +        // CraftBukkit start
 +        @Override
 +        public org.bukkit.command.CommandSender getBukkitSender(CommandListenerWrapper wrapper) {
-+            return new org.bukkit.craftbukkit.command.CraftBlockCommandSender(wrapper);
++            return new org.bukkit.craftbukkit.command.CraftBlockCommandSender(wrapper, TileEntityCommand.this);
 +        }
 +        // CraftBukkit end
 +

nms-patches/TileEntitySign.patch

@@ -66,7 +66,7 @@
 +    // CraftBukkit start
 +    @Override
 +    public org.bukkit.command.CommandSender getBukkitSender(CommandListenerWrapper wrapper) {
-+        return wrapper.f() != null ? wrapper.f().getBukkitSender(wrapper) : new org.bukkit.craftbukkit.command.CraftBlockCommandSender(wrapper);
++        return wrapper.f() != null ? wrapper.f().getBukkitSender(wrapper) : new org.bukkit.craftbukkit.command.CraftBlockCommandSender(wrapper, this);
 +    }
 +    // CraftBukkit end
 +

src/main/java/org/bukkit/craftbukkit/command/CraftBlockCommandSender.java

@@ -1,13 +1,12 @@
 package org.bukkit.craftbukkit.command;
 
-import net.minecraft.server.CommandBlockListenerAbstract;
 import net.minecraft.server.CommandListenerWrapper;
-import net.minecraft.server.ICommandListener;
 import net.minecraft.server.IChatBaseComponent;
-import net.minecraft.server.Vec3D;
+import net.minecraft.server.TileEntity;
 
 import org.bukkit.block.Block;
 import org.bukkit.command.BlockCommandSender;
+import org.bukkit.craftbukkit.block.CraftBlock;
 import org.bukkit.craftbukkit.util.CraftChatMessage;
 
 /**
@@ -15,15 +14,16 @@ import org.bukkit.craftbukkit.util.CraftChatMessage;
  */
 public class CraftBlockCommandSender extends ServerCommandSender implements BlockCommandSender {
     private final CommandListenerWrapper block;
+    private final TileEntity tile;
 
-    public CraftBlockCommandSender(CommandListenerWrapper commandBlockListenerAbstract) {
+    public CraftBlockCommandSender(CommandListenerWrapper commandBlockListenerAbstract, TileEntity tile) {
         super();
         this.block = commandBlockListenerAbstract;
+        this.tile = tile;
     }
 
     public Block getBlock() {
-        Vec3D pos = block.getPosition();
-        return block.getWorld().getWorld().getBlockAt((int) pos.x, (int) pos.y, (int) pos.z);
+        return CraftBlock.at(tile.getWorld(), tile.getPosition());
     }
 
     public void sendMessage(String message) {