fix skill issue

Author: brachy84

src/main/java/com/cleanroommc/modularui/value/sync/GenericListSyncHandler.java

@@ -54,7 +54,8 @@ public List<T> getValue() {
     @Override
     public void read(PacketBuffer buffer) throws IOException {
         this.cache.clear();
-        for (int i = 0; i < buffer.readVarInt(); i++) {
+        int size = buffer.readVarInt();
+        for (int i = 0; i < size; i++) {
             this.cache.add(deserializeValue(buffer));
         }
         onSetCache(getValue(), true, false);

src/main/java/com/cleanroommc/modularui/value/sync/GenericMapSyncHandler.java

@@ -96,7 +96,8 @@ public void write(PacketBuffer buffer) throws IOException {
     @Override
     public void read(PacketBuffer buffer) throws IOException {
         this.cache.clear();
-        for (int i = 0; i < buffer.readVarInt(); i++) {
+        int size = buffer.readVarInt();
+        for (int i = 0; i < size; i++) {
             this.cache.put(this.keyDeserializer.deserialize(buffer), this.valueDeserializer.deserialize(buffer));
         }
         this.setter.accept(getValue());

src/main/java/com/cleanroommc/modularui/value/sync/GenericSetSyncHandler.java

@@ -52,7 +52,8 @@ public Set<T> getValue() {
     @Override
     public void read(PacketBuffer buffer) throws IOException {
         this.cache.clear();
-        for (int i = 0; i < buffer.readVarInt(); i++) {
+        int size = buffer.readVarInt();
+        for (int i = 0; i < size; i++) {
             this.cache.add(deserializeValue(buffer));
         }
         onSetCache(getValue(), true, false);