fix: <Form> initial snapshot is empty

lib/react/Form/Form.jsx

@@ -56,7 +56,7 @@ export function Form({
 	...props
 }) {
 	const formElm = useRef();
-	const initValues = useRef(/** @type {ComposedData} */ ({})); // `useRef` to avoid needless re-renders
+	const initValues = useRef(/** @type {ComposedData} */ (null)); // `useRef` to avoid needless re-renders
 	const {
 		pristine,
 		touched,

lib/react/Form/Form.spec.js

@@ -67,9 +67,19 @@ describe('Form', () => {
 			expect(spies.stopPropagationCalled).to.be.true;
 		});
 
-		it('should abort when form is pristine', () => {
+		it('should abort when delta is empty', () => {
 			let cbCalled = false;
 			const { event } = generateFakeSubmissionEvent({ attrs: { pristine: true } });
+			const fields = generateFieldData(false);
+
+			event.target.elements = [
+				fields.forename,
+				fields.surname,
+				fields.email,
+				fields.tel,
+				fields.age,
+				fields.newsletterOptin,
+			];
 
 			onSubmit(event, initValues, () => cbCalled = true);
 

lib/react/Form/Form.test.jsx

@@ -253,8 +253,8 @@ describe('<Form>', () => {
 
 			fireEvent.submit(form);
 
-			expect(delta).to.eql(nV);
-			expect(all).to.eql({
+			expect(delta, 'delta').to.eql(nV);
+			expect(all, 'all').to.eql({
 				__proto__: null,
 				age: nV.age,
 				contactDetails: {

package.json

@@ -1,6 +1,6 @@
 {
   "name": "form5",
-  "version": "3.2.2",
+  "version": "3.2.3",
   "description": "A set of mostly unopinionated react components leveraging native APIs; supports controlled and uncontrolled state.",
   "type": "module",
   "files": [