Always use interface value when retrieving field values

Instead of trying to specially handle zero field values, the code
instead depends on the values to be properly handled further down the
stack.

ext/native.go

@@ -279,7 +279,7 @@ func (tp *nativeTypeProvider) FindStructFieldType(typeName, fieldName string) (*
 		GetFrom: func(obj any) (any, error) {
 			refVal := reflect.Indirect(reflect.ValueOf(obj))
 			refField := valueFieldByName(tp.options.parseStructTags, refVal, fieldName)
-			return getFieldValue(tp, refField), nil
+			return refField.Interface(), nil
 		},
 	}, true
 }
@@ -704,29 +704,7 @@ func (t *nativeType) hasField(fieldName string) (reflect.StructField, bool) {
 }
 
 func adaptFieldValue(adapter types.Adapter, refField reflect.Value) ref.Val {
-	return adapter.NativeToValue(getFieldValue(adapter, refField))
-}
-
-func getFieldValue(adapter types.Adapter, refField reflect.Value) any {
-	if refField.IsZero() {
-		switch refField.Kind() {
-		case reflect.Array, reflect.Slice:
-			if refField.Type().Elem() == reflect.TypeOf(byte(0)) {
-				return refField.Interface()
-			}
-			return types.NewDynamicList(adapter, []ref.Val{})
-		case reflect.Map:
-			return types.NewDynamicMap(adapter, map[ref.Val]ref.Val{})
-		case reflect.Struct:
-			if refField.Type() == timestampType {
-				return types.Timestamp{Time: time.Unix(0, 0)}
-			}
-			return reflect.New(refField.Type()).Elem().Interface()
-		case reflect.Pointer:
-			return reflect.New(refField.Type().Elem()).Interface()
-		}
-	}
-	return refField.Interface()
+	return adapter.NativeToValue(refField.Interface())
 }
 
 func simplePkgAlias(pkgPath string) string {