experimenting with recursive update

broadcast/broadcast.go

@@ -291,7 +291,6 @@ func recursiveUpdate(dst, src reflect.Value) error {
 			dstVal := dst.MapIndex(key)
 			if !dstVal.IsValid() {
 				dstVal = reflect.New(dst.Type().Elem()).Elem()
-				dst.SetMapIndex(key, dstVal)
 			}
 			// Recursive call to handle potential nested maps or structs
 			if err := recursiveUpdate(dstVal, srcVal); err != nil {