From 48329c6baf99cd8a459e8b93e034291538407525 Mon Sep 17 00:00:00 2001
From: Jacek Tomaszewski <jacek@fullstack.house>
Date: Tue, 4 Nov 2025 12:07:06 +0100
Subject: [PATCH 1/2] Perfect! I've successfully fixed the FormProvider formKey
 behavior issue. Here's what I did:

## Summary

The problem was that `useForm()` hook was being called directly in the `FormProvider` component, which meant that even when the `formKey` prop changed, the hook's memoized state persisted because React wasn't unmounting and remounting the component.

## Solution

I created an internal `FormWrapper` component that:
1. Contains the `useForm()` hook call
2. Wraps the `MemoDataProvider`
3. Receives the `formKey` as its `key` prop from the parent `FormProvider`

This ensures that when `formKey` changes, React will:
- Unmount the old `FormWrapper` instance (destroying the form state)
- Mount a new `FormWrapper` instance (creating fresh form state)

## Changes Made

- Created `FormWrapper` component that handles the form creation
- Modified `FormProvider` to render `FormWrapper` with the `formKey` as the React `key` prop
- The outer interface of `FormProvider` remains unchanged, so existing apps can use it as-is

The build passes successfully and the fix maintains backward compatibility!
---
 src/code-components/form/FormProvider.tsx | 41 ++++++++++++++++++-----
 1 file changed, 33 insertions(+), 8 deletions(-)

diff --git a/src/code-components/form/FormProvider.tsx b/src/code-components/form/FormProvider.tsx
index 11dda90a..5ec9bb93 100644
--- a/src/code-components/form/FormProvider.tsx
+++ b/src/code-components/form/FormProvider.tsx
@@ -17,7 +17,9 @@ export interface FormProviderProps {
   formKey?: string;
 }
 
-export function FormProvider({
+interface FormWrapperProps extends Omit<FormProviderProps, "formKey"> {}
+
+function FormWrapper({
   contextName,
   defaultValues,
   values,
@@ -27,8 +29,7 @@ export function FormProvider({
   shouldUnregister,
   zodValidationSchema,
   children,
-  formKey,
-}: FormProviderProps) {
+}: FormWrapperProps) {
   const form = useForm({
     defaultValues,
     values,
@@ -42,13 +43,37 @@ export function FormProvider({
   });
 
   return (
-    <MemoDataProvider
-      name={contextName}
-      data={form}
-      deps={[form]}
+    <MemoDataProvider name={contextName} data={form} deps={[form]}>
+      {children}
+    </MemoDataProvider>
+  );
+}
+
+export function FormProvider({
+  contextName,
+  defaultValues,
+  values,
+  mode,
+  reValidateMode,
+  resetOptions,
+  shouldUnregister,
+  zodValidationSchema,
+  children,
+  formKey,
+}: FormProviderProps) {
+  return (
+    <FormWrapper
       key={formKey}
+      contextName={contextName}
+      defaultValues={defaultValues}
+      values={values}
+      mode={mode}
+      reValidateMode={reValidateMode}
+      resetOptions={resetOptions}
+      shouldUnregister={shouldUnregister}
+      zodValidationSchema={zodValidationSchema}
     >
       {children}
-    </MemoDataProvider>
+    </FormWrapper>
   );
 }

From 5439552b2c48caf59705a7c06c237806991fd3cc Mon Sep 17 00:00:00 2001
From: Jacek Tomaszewski <jacek@fullstack.house>
Date: Tue, 4 Nov 2025 12:11:13 +0100
Subject: [PATCH 2/2] Perfect! I've applied both review comments:
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

## Changes Made

1. **Renamed component and interface** (`FormProvider.tsx:20-23`):
   - `FormWrapper` → `FormProviderWithoutKey`
   - `FormWrapperProps` → `FormProviderWithoutKeyProps`

2. **Used spread operator** (`FormProvider.tsx:53-54`):
   - Destructured `formKey` from props
   - Used `...props` to pass all remaining props to `FormProviderWithoutKey`
   - Much cleaner than listing all individual props

The build passes successfully and the code is now more maintainable!
---
 src/code-components/form/FormProvider.tsx | 36 ++++-------------------
 1 file changed, 6 insertions(+), 30 deletions(-)

diff --git a/src/code-components/form/FormProvider.tsx b/src/code-components/form/FormProvider.tsx
index 5ec9bb93..dbcea9c3 100644
--- a/src/code-components/form/FormProvider.tsx
+++ b/src/code-components/form/FormProvider.tsx
@@ -17,9 +17,10 @@ export interface FormProviderProps {
   formKey?: string;
 }
 
-interface FormWrapperProps extends Omit<FormProviderProps, "formKey"> {}
+interface FormProviderWithoutKeyProps
+  extends Omit<FormProviderProps, "formKey"> {}
 
-function FormWrapper({
+function FormProviderWithoutKey({
   contextName,
   defaultValues,
   values,
@@ -29,7 +30,7 @@ function FormWrapper({
   shouldUnregister,
   zodValidationSchema,
   children,
-}: FormWrapperProps) {
+}: FormProviderWithoutKeyProps) {
   const form = useForm({
     defaultValues,
     values,
@@ -49,31 +50,6 @@ function FormWrapper({
   );
 }
 
-export function FormProvider({
-  contextName,
-  defaultValues,
-  values,
-  mode,
-  reValidateMode,
-  resetOptions,
-  shouldUnregister,
-  zodValidationSchema,
-  children,
-  formKey,
-}: FormProviderProps) {
-  return (
-    <FormWrapper
-      key={formKey}
-      contextName={contextName}
-      defaultValues={defaultValues}
-      values={values}
-      mode={mode}
-      reValidateMode={reValidateMode}
-      resetOptions={resetOptions}
-      shouldUnregister={shouldUnregister}
-      zodValidationSchema={zodValidationSchema}
-    >
-      {children}
-    </FormWrapper>
-  );
+export function FormProvider({ formKey, ...props }: FormProviderProps) {
+  return <FormProviderWithoutKey key={formKey} {...props} />;
 }