We see in #27387 that a call to `polymorphic_path` will cause duplicate
SELECT route calls for each merge request in a milestone. This happens
because calling `project.namespace.becomes(Namespace)` will instantiate
a new instance of a Namespace for each merge request, which causes a N+1
query on the routes table. This change caches the state of the route by
the specific class and ID, which dramatically eliminates duplicate work.

submodule_links: handle urls that don't end with .git

See merge request !10799

[ci skip]

Reword backup & restore secrets description

See merge request !10753

Fix Git repository URL field on New Project page

See merge request !10803

Merge branch '31265-update-auto-deploy-documentation-for-postgres-and-private-project-support' into 'master'

Update Auto Deploy documentation

Closes #31265

See merge request !10859

Remove reference to burndown charts since they don't exist for ce.

See merge request !10861

fix placeholder visibility

Closes #30618

See merge request !10804

Use master_password for Sentinel

See merge request !10857

Start versioning cached markdown fields

Closes #30672

See merge request !10597

Refactor add_users method for project and group

See merge request !10850

discussions docs

See merge request !10390

- Move to dicsussions/index.md
- Bring back previous path with a link to new location
- Reorder sections

Fixed the preview keyboard shortcut focusing wrong tab

Closes #31101

See merge request !10849

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

Now correctly tests against different forms

Based on !10841 Fix Error 500 when referencing issue with project in pending delete

Closes #31215

See merge request !10843

Refactor environments components into vue files - part 3

See merge request !10833

Fix user profile tabs showing raw json when navigating back and forward

See merge request !10352

Adding animation for all dropdown

Closes #26208

See merge request !8419

Signed-off-by: David Turner <novalis@novalis.org>

Add help regarding vue resource and where to include it

See merge request !10819

fix inline diff copying in firefox

Closes #31193

See merge request !10838

Refactor Admin::GroupsController#members_update method and add some specs

See merge request !10828

Add CHANGELOG entry

Closes #31101

Mention Microsoft teams service in project services doc

See merge request !10815