Cleared field bugfix of #1211

CHANGELOG.md

@@ -14,6 +14,7 @@
     - It will now wait for at least 1 second to elapse after the last change before writing the configuration back to disk.
 - Fixed issues ([#957](https://github.com/spatialos/gdk-for-unity/issues/957), [#958](https://github.com/spatialos/gdk-for-unity/issues/958)) where valid schema would generate invalid code due to name clashes. [#1222](https://github.com/spatialos/gdk-for-unity/pull/1222)
     - The offending schema properties will no longer be generated and are now logged in the Unity Editor.
+- Fixed a bug where cleared fields in a received update would not be applied to the diff. [#1229](https://github.com/spatialos/gdk-for-unity/pull/1229)
 
 ### Internal
 

workers/unity/Packages/io.improbable.gdk.core/.codegen/Templates/ComponentDiffDeserializerGenerator.tt

@@ -25,7 +25,7 @@ namespace <#= qualifiedNamespace #>
 
             public void AddUpdateToDiff(ComponentUpdateOp op, ViewDiff diff, uint updateId)
             {
-                if (op.Update.SchemaData.Value.GetFields().GetUniqueFieldIdCount() > 0)
+                if (op.Update.SchemaData.Value.GetFields().GetUniqueFieldIdCount() + op.Update.SchemaData.Value.GetClearedFieldCount() > 0)
                 {
                     var update = <#= componentNamespace #>.Serialization.DeserializeUpdate(op.Update.SchemaData.Value);
                     diff.AddComponentUpdate(update, op.EntityId, op.Update.ComponentId, updateId);