Epic state uses enum for saving state (other issuables use
string), because of this inconsistency we override `count_key`
which should return state as string converted to symbol
(.e.g. :closed). In rails 5 these integer states are automatically
converted to strings by Active Record.

But if subquery is used (to optimize searching), Active Record doesn't
convert state into string automatically (probably it can not deal with
the more complex query).

This means that epic state can be either integer (if subquery is used)
or string (if AR converted state to string automatically), so in
`count_key` we should convert state into string only if it's an integer.

EE: Remove rails4 specific code

See merge request gitlab-org/gitlab-ee!8870

Document omnibus config for smartcard auth

See merge request gitlab-org/gitlab-ee!8795

Docs: follow up from "Clearly state web terminal is not supported at all on GitLab.com"

Closes #8866

See merge request gitlab-org/gitlab-ee!8866

Merge branch 'docs/8884-update-group-security-dashboard-documentation-to-remove-auto-devops-incompatibility' into 'master'

Resolve "Update Group Security Dashboard documentation to remove Auto DevOps incompatibility"

Closes #8884

See merge request gitlab-org/gitlab-ee!8878

Show clusters of ancestors in cluster list page

Closes #34758

See merge request gitlab-org/gitlab-ce!22996

Resolve "Encoding issue with the user centric tooltips"

Closes #55276

See merge request gitlab-org/gitlab-ce!23794

Passing the separator argument as a positional parameter is deprecated

See merge request gitlab-org/gitlab-ce!23334

Remove unnecessary warning and add other minor improvements

See merge request gitlab-org/gitlab-ee!8722

Added Cop for injecting EE modules

See merge request gitlab-org/gitlab-ce!23802

EE: Added Cop for injecting EE modules

See merge request gitlab-org/gitlab-ee!8843

CE-EE parity for prepare_build script

See merge request gitlab-org/gitlab-ce!23819

[EE] CE-EE parity for prepare_build script

See merge request gitlab-org/gitlab-ee!8846

Add Registry S3 chunksize troubleshooting section

See merge request gitlab-org/gitlab-ce!23841

Fix RSpec/HookArgument rubocop offense

See merge request gitlab-org/gitlab-ce!23776

Fix RSpec/HookArgument rubocop offense

See merge request gitlab-org/gitlab-ee!8856

Given the note is about how to interpret ancestor clusters, use the
finder which actually knows if there are any ancestor clusters to find
out if the note should be shown, rather than passing the same info via a
view to a helper

Added note about Kaminari.paginate_array

Link to followup issue too

This is in addtion to the can checks we have in the controller, as a
finder can be used elsewhere in the future.

Part of the code such as #show_path is already present on the presenter.
Also avoid having code in two places (helper and presenter)

Sanitize and assert html_safe. Additional layer of defense - on top of
GitLab already requiring group names to be composed of small set of
chars A-Z, - and spaces.

Only link to cluster if user can read cluster

Make clear that arg is a GroupClusterablePresenter

Add more specs for completeness

- Use sprite_icon instead of hardcoded html
- Use a more descriptive method name
- Changes specs to use html_safe matcher

- Moves logic into ClustersHelp
- Add CSS to ensure compatibility with EE view.

Add specs

Make link clear in note box

Also update strings to be translatable

Show both the cluster(s) of the clusterable, and the cluster(s) of
ancestor groups.

Merge branch '55402-broken-master-karma-test-failing-in-spec-javascripts-boards-components-issue_due_date_spec-js' into 'master'

Resolve "Broken master: karma test failing in spec/javascripts/boards/components/issue_due_date_spec.js"

Closes #55402

See merge request gitlab-org/gitlab-ce!23845

Fixed upload file button not working for repo cleanup

See merge request gitlab-org/gitlab-ee!8858

Display empty files properly on MR diffs

Closes #54786

See merge request gitlab-org/gitlab-ce!23671