Fix race condition when previewing docs

Closes gitlab-com/gitlab-docs#154 et #41024

See merge request gitlab-org/gitlab-ce!17552

Fix a changelog entry YAML to be consistent with EE

See merge request gitlab-org/gitlab-ce!17554

Remove default scope from todos

See merge request gitlab-org/gitlab-ce!17531

Resolve "Pipelines view should handle empty state and buttons properly"

Closes #38587

See merge request gitlab-org/gitlab-ce!17433

Cancel the pipeline that gets created the first time the remote
branch is created in order not to overwrite the one we trigger
afterwards.

Closes https://gitlab.com/gitlab-com/gitlab-docs/issues/154

Add checksum to ci_job_artifacts

Closes #43599

See merge request gitlab-org/gitlab-ce!17354

Resolve "Enable privileged mode for Runner installed on Kubernetes"

Closes #43793

See merge request gitlab-org/gitlab-ce!17528

Create CI/CD-only projects by URL -- CE backport

See merge request gitlab-org/gitlab-ce!17342

Don't error out in system hook if user has `nil` datetime columns

Closes #43871

See merge request gitlab-org/gitlab-ce!17543

Make oauth provider login generic

See merge request gitlab-org/gitlab-ce!8809

Release libgit2 cache and open file descriptors after `git gc` run

See merge request gitlab-org/gitlab-ce!17506

Deleting a user would fail in the system hooks if the user had
`nil` column in `datetime` or `updated_at` fields.

Closes #43871

Use host URL to build JIRA remote link icon

Closes #31081

See merge request gitlab-org/gitlab-ce!17541

See https://gitlab.com/gitlab-org/gitlab-ee/issues/3839

Conflicts:
	app/assets/javascripts/projects/project_new.js
	app/views/shared/_import_form.html.haml
	ee/app/controllers/ee/projects_controller.rb
	ee/spec/features/projects/new_project_spec.rb
	locale/gitlab.pot

Resolve "SSH key add text"

Closes #43829

See merge request gitlab-org/gitlab-ce!17527

Reduce usage of deprecated *_with_namespace methods

See merge request gitlab-org/gitlab-ce!17523

* master: (52 commits)
  Projects and groups badges API
  Keep a commit around if its sha is present
  #43691: DiffNotes not counted by ContributionsCalendar
  Cleanup after adding MR diff's commit_count
  Fix MR merge commit cross-references to the MR itself
  Fix n+1 issue by not reloading fully loaded blobs
  Add "added" type on changelog
  Use limited count queries also for scoped searches
  Update changelog
  Rename quick actions handler
  Adds updated_at filter to issues and merge_requests API
  Update API: add search param to branches
  Add changelog entry
  LabelsSelect DropdownValueCollapsed Component
  LabelsSelect DropdownValue Component
  LabelsSelect DropdownTitle Component
  LabelsSelect DropdownSearchInput Component
  LabelsSelect DropdownHiddenInput Component
  LabelsSelect DropdownHeader Component
  LabelsSelect DropdownFooter Component
  ...

Projects and groups badges API

See merge request gitlab-org/gitlab-ce!17082

Cleanup after adding MR diff's commit_count

Closes #41698

See merge request gitlab-org/gitlab-ce!17513

Remove impersonate token from flash scope in UI

See merge request gitlab-org/gitlab-ce!17480

Keep note commit around if commit_id is present

Closes gitaly#1054

See merge request gitlab-org/gitlab-ce!17496

Port Labels Select dropdown to Vue

See merge request gitlab-org/gitlab-ce!17411

This was causing todo priority sorting to fail.

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

Try not to hold env and release the controller after the request.

See merge request gitlab-org/gitlab-ce!16847