The mocks in the tests make them hard to understand and they don't always test real router behavior

PR Close #48734

…utlets (#48734)

The details of this commit are pretty thoroughly described in the tests
and code comments. In short, it is sometimes ambiguous where to apply commands in
a `SegmentGroup` tree that is created from an `ActivatedRoute` when
dealing with empty paths. This adjusts the strategy to tolerate more
ambiguity while still allowing developers to be explicit.

This is a fix-forward for b/265215141

PR Close #48734

…utlets (#48734)

The details of this commit are pretty thoroughly described in the tests
and code comments. In short, it is sometimes ambiguous where to apply commands in
a `SegmentGroup` tree that is created from an `ActivatedRoute` when
dealing with empty paths. This adjusts the strategy to tolerate more
ambiguity while still allowing developers to be explicit.

This is a fix-forward for b/265215141

PR Close #48734

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [@angular/animations](https://github.com/angular/angular) | dependencies | patch | [`15.1.1` -> `15.1.2`](https://renovatebot.com/diffs/npm/@angular%2fanimations/15.1.1/15.1.2) |
| [@angular/common](https://github.com/angular/angular) | dependencies | patch | [`15.1.1` -> `15.1.2`](https://renovatebot.com/diffs/npm/@angular%2fcommon/15.1.1/15.1.2) |
| [@angular/compiler](https://github.com/angular/angular) | dependencies | patch | [`15.1.1` -> `15.1.2`](https://renovatebot.com/diffs/npm/@angular%2fcompiler/15.1.1/15.1.2) |
| [@angular/compiler-cli](https://github.com/angular/angular/tree/main/packages/compiler-cli) ([source](https://github.com/angular/angular)) | devDependencies | patch | [`15.1.1` -> `15.1.2`](https://renovatebot.com/diffs/npm/@angular%2fcompiler-cli/15.1.1/15.1.2) |
| [@angular/core](https://github.com/angular/angular) | dependencies | patch | [`15.1.1` -> `15.1.2`](https://renovatebot.com/diffs/npm/@angular%2fcore/15.1.1/15.1.2) |
| [@angular/forms](https://github.com/angular/angular) | dependencies | patch | [`15.1.1` -> `15.1.2`](https://renovatebot.com/diffs/npm/@angular%2fforms/15.1.1/15.1.2) |
| [@angular/platform-browser](https://github.com/angular/angular) | dependencies | patch | [`15.1.1` -> `15.1.2`](https://renovatebot.com/diffs/npm/@angular%2fplatform-browser/15.1.1/15.1.2) |
| [@angular/platform-browser-dynamic](https://github.com/angular/angular) | dependencies | patch | [`15.1.1` -> `15.1.2`](https://renovatebot.com/diffs/npm/@angular%2fplatform-browser-dynamic/15.1.1/15.1.2) |

---

### Release Notes

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

### [`v15.1.2`](https://github.com/angular/angular/blob/HEAD/CHANGELOG.md#&#8203;1512-2023-01-25)

[Compare Source](angular/angular@15.1.1...15.1.2)

##### compiler

| Commit | Type | Description |
| -- | -- | -- |
| [98ccb57117](angular/angular@98ccb57) | fix | handle css selectors with space after an escaped character. ([#&#8203;48558](angular/angular#48558)) |

##### compiler-cli

| Commit | Type | Description |
| -- | -- | -- |
| [145f848a10](angular/angular@145f848) | fix | resolve deprecation warning ([#&#8203;48812](angular/angular#48812)) |

##### router

| Commit | Type | Description |
| -- | -- | -- |
| [a6b10f6e59](angular/angular@a6b10f6) | fix | 'createUrlTreeFromSnapshot' with empty paths and named outlets ([#&#8203;48734](angular/angular#48734)) |

#### Special Thanks

Alan Agius, AleksanderBodurri, Andrew Kushnir, Andrew Scott, Charles Lyding, Dylan Hunn, JoostK, Matthieu Riegler, Paul Gschwendtner, Payam Valadkhan, Virginia Dooley, Yann Thomas LE MOIGNE and dario-piotrowicz

<!-- CHANGELOG SPLIT MARKER -->

</details>

---

### Configuration

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♻ **Rebasing**: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 **Ignore**: Close this PR and you won't be reminded about these updates again.

---

 - [ ] <!-- rebase-check -->If you want to rebase/retry this PR, check this box

---

This PR has been generated by [Renovate Bot](https://github.com/renovatebot/renovate).
<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiIzNC4xMTQuMSIsInVwZGF0ZWRJblZlciI6IjM0LjExNC4xIn0=-->

Co-authored-by: cabr2-bot <cabr2.help@gmail.com>
Reviewed-on: https://codeberg.org/Calciumdibromid/CaBr2/pulls/1751
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)

The mocks in the tests make them hard to understand and they don't always test real router behavior

PR Close angular#48734

…utlets (angular#48734)

The details of this commit are pretty thoroughly described in the tests
and code comments. In short, it is sometimes ambiguous where to apply commands in
a `SegmentGroup` tree that is created from an `ActivatedRoute` when
dealing with empty paths. This adjusts the strategy to tolerate more
ambiguity while still allowing developers to be explicit.

This is a fix-forward for b/265215141

PR Close angular#48734