We’ve seen a deadlock in CI here https://gitlab.com/mkozono/gitlab-ce/builds/15644492#down-build-trace. This commit should not fix that particular failure, but perhaps it will avoid others.

* Don’t call delete_conflicting_redirects after update if the path wasn’t changed
* Rename descendants without using recursion again, so we can run delete_conflicting_redirects exactly once.

Note: This changes the behavior of user lookups (see the spec change) so it acts the same way as groups and projects. Unauthenticated clients attempting to access a user page will be redirected to login whether the user exists and is publicly restricted, or does not exist at all.

Not sure why this fixes this error:

```
ActiveRecord::RecordNotUnique:
       PG::UniqueViolation: ERROR:  duplicate key value violates unique constraint "index_routes_on_source_type_and_source_id"
       DETAIL:  Key (source_type, source_id)=(Project, 1) already exists.
       : INSERT INTO "routes" ("source_type", "path", "name", "source_id", "created_at", "updated_at") VALUES ($1, $2, $3, $4, $5, $6) RETURNING "id"
```

Render Description Realtime 🎉

Closes #25049 and #31355

See merge request !10865

Initial balsamiq support

See merge request !10564

Fixed labels layout on labels milestone tab

See merge request !11120

Fallback localstorage cases

Closes #30179 and #25788

See merge request !10937

Add sentry JS

See merge request !6764

30007 Add transparent top-border to the hover state of done todos

Closes #30007

See merge request !11104

Fixed cycle analytics intro box styling regression

Closes #31844

See merge request !11111

31689 Add default margin-top to user request table on project members page

Closes #31689

See merge request !11103

[ci skip]

Support comments for personal snippets

Closes #12910

See merge request !11090

Remove FE team label

See merge request !11119

Wrap note actions below timestamp on discussions

Closes #31727 and #30984

See merge request !11062

Backport avatar-related spec changes from gitlab-org/gitlab-ee@4b464eaaee

See merge request !11072

Added rescue block for the test method for the prometheus service

Closes #31451

See merge request !10994