…46253)

Consider the case in which `FormBuilder` is used to construct a group with an optional field:

```
const controls = { name: fb.control('') };
const foo: FormGroup<{
  name: FormControl<string | null>;
  address?: FormControl<string | null>;
}> = fb.group<{
  name: FormControl<string | null>;
  address?: FormControl<string | null>;
}>(controls);
```

Today, with fully strict TypeScript settings, the above will not compile:

```
Types of property 'controls' are incompatible.
Type '{ name: FormControl<string | null>; address?: FormControl<FormGroup<SubFormControls> | null | undefined> | undefined; }' is not assignable to type '{ name: FormControl<string | null>; address?: FormGroup<SubFormControls> | undefined; }'.
```

Notice that the `fb.group(...)` is calculating the following type for address: `address?: FormControl<FormGroup<string|null>`. This is clearly wrong -- an extraneous `FormControl` has been added!

This is coming from the calculation of the result type of `fb.group(...)`. In the type definition, if we cannot detect the outer control type, [we assume it's just an unwrapped value, and automatically wrap it in `FormControl`](https://github.com/angular/angular/blob/14.0.0/packages/forms/src/form_builder.ts#L66).

Because the optional `{address?: FormControl<string|null>}` implicitly makes the RHS have type `FormControl<string|null>|undefined`, [the relevant condition is not satisfied](https://github.com/angular/angular/blob/14.0.0/packages/forms/src/form_builder.ts#L55). In particular, the condition expects just `FormGroup<T>`, not `FormGroup<T>|undefined`. So we assume `T` is a value type, and it gets wrapped with `FormControl`.

The solution is to add the cases where `undefined` is included in the union type when detecting which control `T` is (if any).

PR Close #46253

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [@angular/animations](https://github.com/angular/angular) | dependencies | patch | [`14.0.0` -> `14.0.1`](https://renovatebot.com/diffs/npm/@angular%2fanimations/14.0.0/14.0.1) |
| [@angular/common](https://github.com/angular/angular) | dependencies | patch | [`14.0.0` -> `14.0.1`](https://renovatebot.com/diffs/npm/@angular%2fcommon/14.0.0/14.0.1) |
| [@angular/compiler](https://github.com/angular/angular) | dependencies | patch | [`14.0.0` -> `14.0.1`](https://renovatebot.com/diffs/npm/@angular%2fcompiler/14.0.0/14.0.1) |
| [@angular/compiler-cli](https://github.com/angular/angular) | devDependencies | patch | [`14.0.0` -> `14.0.1`](https://renovatebot.com/diffs/npm/@angular%2fcompiler-cli/14.0.0/14.0.1) |
| [@angular/core](https://github.com/angular/angular) | dependencies | patch | [`14.0.0` -> `14.0.1`](https://renovatebot.com/diffs/npm/@angular%2fcore/14.0.0/14.0.1) |
| [@angular/forms](https://github.com/angular/angular) | dependencies | patch | [`14.0.0` -> `14.0.1`](https://renovatebot.com/diffs/npm/@angular%2fforms/14.0.0/14.0.1) |
| [@angular/platform-browser](https://github.com/angular/angular) | dependencies | patch | [`14.0.0` -> `14.0.1`](https://renovatebot.com/diffs/npm/@angular%2fplatform-browser/14.0.0/14.0.1) |
| [@angular/platform-browser-dynamic](https://github.com/angular/angular) | dependencies | patch | [`14.0.0` -> `14.0.1`](https://renovatebot.com/diffs/npm/@angular%2fplatform-browser-dynamic/14.0.0/14.0.1) |

---

### Release Notes

<details>
<summary>angular/angular</summary>

### [`v14.0.1`](https://github.com/angular/angular/blob/HEAD/CHANGELOG.md#&#8203;1401-2022-06-08)

[Compare Source](angular/angular@14.0.0...14.0.1)

##### bazel

| Commit | Type | Description |
| -- | -- | -- |
| [b00d237c0e](angular/angular@b00d237) | fix | update API extractor version ([#&#8203;46259](angular/angular#46259)) |
| [9a0a7bac21](angular/angular@9a0a7ba) | perf | reduce input files for `ng_package` rollup and type bundle actions ([#&#8203;46187](angular/angular#46187)) |

##### forms

| Commit | Type | Description |
| -- | -- | -- |
| [dde0b7f4b3](angular/angular@dde0b7f) | fix | allow FormBuilder.group(...) to accept optional fields. ([#&#8203;46253](angular/angular#46253)) |

#### Special Thanks

Adrien Crivelli, Alan Agius, Alex Rickabaugh, Andrew Kushnir, Andrew Scott, Dylan Hunn, Fabrizio Fallico, George Kalpakas, Jelle Bruisten, JoostK, Kristiyan Kostadinov, Krzysztof Platis, Paul Gschwendtner, Phalgun Vaddepalli, San Leen, dario-piotrowicz, mgechev and wellWINeo

<!-- CHANGELOG SPLIT MARKER -->

</details>

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