fix tiny sync errors (#4756)

Author: gustovafing

src/main/java/com/gregtechceu/gtceu/api/machine/trait/MachineTraitHolder.java

@@ -119,7 +119,7 @@ public Tag serializeNBT(MachineTraitHolder value, TransformerContext<MachineTrai
                             key);
                     continue;
                 }
-                trait.getSyncDataHolder().deserializeNBT(compoundTag.getCompound("key"), context.isClientSync());
+                trait.getSyncDataHolder().deserializeNBT(compoundTag.getCompound(key), context.isClientSync());
             }
 
             return null;

src/main/java/com/gregtechceu/gtceu/api/sync_system/data_transformers/collections/SetTransformer.java

@@ -33,7 +33,7 @@ private ValueTransformer.TransformerContext<T> getInnerElemContext(@Nullable T e
                                                                        ValueTransformer.TransformerContext<Set<T>> parentContext) {
         return new TransformerContext<>(parentContext.holder(),
                 parentContext.type().getGenericTypeArgs()[0], elem, parentContext.fieldName() + "[element]",
-                parentContext.isClientSync(), parentContext.isClientSync());
+                parentContext.isClientSync(), parentContext.isClientFullSyncUpdate());
     }
 
     @Override