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bug: react - `form.Field mode=array` rerender the render props after first change, even if array size is identical - only first time

3

### Describe the bug Given... ```tsx const form = useForm({ todos: [ {text: 'Buy X'} ] }); ``` ...as far as I know, this ```tsx { const items = arrayFieldApi.state.value;...

tresorama

fix: enhance form state merging with error map support

4

## 🎯 Changes - We reverted FormApi.validateSync to store global errors only as existing string formats, ensuring form state and field meta synchronization remains compatible with previous behavior. - We...

jiji-hoon96

removeFieldValue keeps data from subfields when used with form.AppField - unable to delete last row in AgGrid

1

### Describe the bug I am using Tanstack Form with AgGrid. When calling removeFieldValue, some subfields persist even after the parent field is removed. I suspect it has something to...

nmai601

### Describe the bug The internal types of Tanstack Form, `DeepValue` and `DeepKeysAndValues` don't handle union types correctly and seem to collapse them. ```ts type Example = { id: string...

AshotN

Removing array field item doesn't work inside of transition group, when there's a default value

11

### Describe the bug This bug was extremely confusing but I finally managed to reproduce it minimally. When rendering a `TransitionGroup` inside of the `children` callback of an array `form.Field`,...

ej-shafran

Hidden field doesn't show errors on mount

11

### Describe the bug I have my form fields in a `Popper`, meaning my `form` object mounts before my fields. This leads to the situation where the `field` level errors...

marc-at-brightnight

### Describe the bug When calling `form.deleteField('fieldName')` on a field that has a `defaultValue` defined, the field is successfully removed from `form.state.values`. However, after React re-renders, the field **automatically reappears**...

kusiewicz

Extremely low performance with large nested fields.

2

### Describe the bug When the form contains large nested arrays, it works extremely slowly. [Here is the link](https://codesandbox.io/p/sandbox/cjs7rm) to replicate the issue Uncomment line 56 `// return {barItem.name};` to...

IvanKalinin

Type error when passing field from `useForm(formOptions(...))` to `AnyFieldApi` prop

1

### Describe the bug When I try to pass `field` object (`FieldApi`) to prop of type `AnyFieldApi` I get a type error. It only happens when the form object from...

Bladesheng

Performance degradation with large forms: validateAllFields triggers O(n²) store updates

2

### Describe the bug ### Summary We have some large and deeply nested forms. Some are f.i. for invoices, which can have up to 500 line items, where a line...

drdla