Remove redundant name from Tag instances.

worldedit-core/src/main/java/com/sk89q/worldedit/world/chunk/AnvilChunk.java

@@ -255,7 +255,7 @@ public class AnvilChunk implements Chunk {
             return null;
         }
 
-        return new CompoundTag("", values);
+        return new CompoundTag(values);
     }
 
     @Override

worldedit-core/src/main/java/com/sk89q/worldedit/world/chunk/OldChunk.java

@@ -179,7 +179,7 @@ public class OldChunk implements Chunk {
         if (values == null) {
             return null;
         }
-        return new CompoundTag("", values);
+        return new CompoundTag(values);
     }
 
     @Override

worldedit-core/src/main/java/com/sk89q/worldedit/world/storage/LegacyChunkStore.java

@@ -85,7 +85,7 @@ public abstract class LegacyChunkStore extends ChunkStore {
         Tag tag;
 
         try {
-            tag = nbt.readTag();
+            tag = nbt.readNamedTag().getTag();
             if (!(tag instanceof CompoundTag)) {
                 throw new ChunkStoreException("CompoundTag expected for chunk; got "
                         + tag.getClass().getName());

worldedit-core/src/main/java/com/sk89q/worldedit/world/storage/McRegionChunkStore.java

@@ -75,7 +75,7 @@ public abstract class McRegionChunkStore extends ChunkStore {
         Tag tag;
 
         try {
-            tag = nbt.readTag();
+            tag = nbt.readNamedTag().getTag();
             if (!(tag instanceof CompoundTag)) {
                 throw new ChunkStoreException("CompoundTag expected for chunk; got " + tag.getClass().getName());
             }