This commit fixes two problems:

1. When a user clicked on another page, the app would fetch the new page
data but never update because the request and response parameters failed
to match the isEqual check. This was happening because the JSON response
omitted the `nested` attribute, so there was a comparison with a `null`
value.  We fix this by scrubbing undefined values before doing the
comparison.

2. There were duplicate requests made for the environments page because
the success handler of fetchPipelines() would cause the polling
component to make another XHR request.

Closes https://gitlab.com/gitlab-org/gitlab-ce/issues/58191

API: Promote project milestone to a group milestone

Closes #53861

See merge request gitlab-org/gitlab-ce!25203

Added: Specs for the API action

Remove N+1 query for tags in /admin/runners page

See merge request gitlab-org/gitlab-ce!25572

As discussed in https://github.com/mbleigh/acts-as-taggable-on/issues/91,
we can avoid N+1 queries if we use `tags` instead of `tag_list`.

Seen while reviewing
https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/19740.

update persona links issue template

See merge request gitlab-org/gitlab-ce!25560

Add name_without_type to environments.json

See merge request gitlab-org/gitlab-ce!25492

It's needed to show shorter names in environments "folders"

Revert "Merge branch '56726-fix-n+1-in-issues-and-merge-requests-api' into 'master'"

See merge request gitlab-org/gitlab-ce!25570

Fix ETag caching not being used for AJAX requests

Closes #57905

See merge request gitlab-org/gitlab-ce!25400

This reverts merge request !25042

Revert "Merge branch '13784-simple-masking-of-protected-variables-in-logs' into 'master'"

See merge request gitlab-org/gitlab-ce!25566

This reverts merge request !25293

Fix N+1 query in Issues and MergeRequest API when issuable_metadata presense

See merge request gitlab-org/gitlab-ce!25042

Move logic of obtaining Issuable data to separate method

Merge branch '46750-ci-empty-environment-is-created-even-when-a-job-isn-t-run-when-manual' into 'master'

Sort Environments by Last Updated

Closes #46750

See merge request gitlab-org/gitlab-ce!25260

Get rid of ScheduleInstallationService

See merge request gitlab-org/gitlab-ce!25420

- deletes schedule_installation_service.rb
- moves schedule_installation_service.rb logic to create_service.rb
- moves specs as well

Removes code duplication

Remove unecessary spec block

Abide review suggestions

Test installable applications which are not associated to a cluster

Fix a typo

Removes duplciated expectation

Reuse variable instead of redefining

Remove method in favor of a local scoped lambda

Improve 'failing service' shared examples

Test the increase of status count

Remove duplicated test

Enable fronzen literal

Resolve "Extend utility classes for `gitlab-ui`search-box"

Closes #58202

See merge request gitlab-org/gitlab-ce!25554

Revert "Merge branch 'revert-82d7b5a0-ce' into 'master'"

Closes #57857 and #50747

See merge request gitlab-org/gitlab-ce!25559

Added YouTrack integration

Closes #42595

See merge request gitlab-org/gitlab-ce!25361

Add adiferd as Indonesia proofreader

See merge request gitlab-org/gitlab-ce!25143

Add task for adding links to the security release issue

See merge request gitlab-org/gitlab-ce!25562

Add support for toggling discussion filter from notes section

Closes gitlab-ee#7716 and #51819

See merge request gitlab-org/gitlab-ce!25426

Adds discussion note style section under notes app from where
user can toggle discussion when they have selected a filter to show
only system notes.

Simple masking of protected variables in logs backend

See merge request gitlab-org/gitlab-ce!25293

This adds a concern that abstracts the concept of masking a variable,
including the RegEx for validation.

Support merge ref writing (without merging to target branch)

Closes #47110

See merge request gitlab-org/gitlab-ce!24692

Fix method to mark a project repository as writable

See merge request gitlab-org/gitlab-ce!25546

Fix incorrect checkbox description. Fixes https://gitlab.com/gitlab-org/gitlab-ce/issues/56519

Closes #56519

See merge request gitlab-org/gitlab-ce!25392

Added GraphQL Jest transform

See merge request gitlab-org/gitlab-ce!25556

Ci::Pipeline#all_merge_requests was only returning merge requests
for that project, but it should include merge requests from forks
as well.
Signed-off-by: Rémy Coutable <remy@rymai.me>

When a pipeline is for a forked merge request, we have to invalidate
the ETag for both the target and source project pipelines. Before
we were only invalidating the target project's pipeline.

Signed-off-by: Rémy Coutable <remy@rymai.me>

Fix misspellings in app/spec comments

See merge request gitlab-org/gitlab-ce!25517