Fix custom name in banners etc. in 1.21.5->1.21.4

Author: kennytv

common/src/main/java/com/viaversion/viabackwards/protocol/v1_21_5to1_21_4/rewriter/BlockItemPacketRewriter1_21_5.java

@@ -78,6 +78,7 @@
 import com.viaversion.viaversion.util.Either;
 import com.viaversion.viaversion.util.Key;
 import com.viaversion.viaversion.util.Limit;
+import com.viaversion.viaversion.util.SerializerVersion;
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
@@ -298,10 +299,19 @@ private void sendSaddledEntityData(final UserConnection connection, final Tracke
 
     private void handleBlockEntity(final UserConnection connection, final BlockEntity blockEntity) {
         final CompoundTag tag = blockEntity.tag();
-        if (tag != null && (blockEntity.typeId() == SIGN_BOCK_ENTITY_ID || blockEntity.typeId() == HANGING_SIGN_BOCK_ENTITY_ID)) {
+        if (tag == null) {
+            return;
+        }
+
+        if (blockEntity.typeId() == SIGN_BOCK_ENTITY_ID || blockEntity.typeId() == HANGING_SIGN_BOCK_ENTITY_ID) {
             updateSignMessages(connection, tag.getCompoundTag("front_text"));
             updateSignMessages(connection, tag.getCompoundTag("back_text"));
         }
+
+        final Tag customName = tag.get("CustomName");
+        if (customName != null) {
+            tag.putString("CustomName", protocol.getComponentRewriter().toUglyJson(connection, customName));
+        }
     }
 
     private void updateSignMessages(final UserConnection connection, final CompoundTag tag) {

common/src/main/java/com/viaversion/viabackwards/protocol/v1_21_5to1_21_4/rewriter/ComponentRewriter1_21_5.java

@@ -254,7 +254,7 @@ private void updateShowEntityHover(final CompoundTag hoverEventTag) {
         }
     }
 
-    private String toUglyJson(final UserConnection connection, final Tag value) {
+    String toUglyJson(final UserConnection connection, final Tag value) {
         processTag(connection, value);
         return SerializerVersion.V1_21_4.toString(SerializerVersion.V1_21_4.toComponent(value));
     }