During a previous refactor on project model, code related to the
hashed storage was extracted into AfterRenameService, see
4b9c17f1.

The "path_before" was changed from using `previous_changes['path']` to
`path_was`. They are not equivalent. `path_was` exists reliably only
*before* persisting to the database. After database persistence is
confirmed, the value is moved to `previous_changes[:attribute_name]`.

Because the repository/attachments rename or storage upgrade happens
after it was persisted to the database, we were in fact not informing
the right parameters (and therefore not doing what it was supposed to).

Resolve "Admin Settings: Cannot read property 'addEventListener' of null"

Closes #56622

See merge request gitlab-org/gitlab-ce!24522

Fixes "New label" button hit miss

Closes gitlab-org/quality/nightly#59

See merge request gitlab-org/gitlab-ce!24487

Eliminate N+1 queries in /api/groups/:id

Closes #49845

See merge request gitlab-org/gitlab-ce!24513

Revert "Merge branch 'qa-use-mr-iid-in-review-app-slug' into 'master'"

See merge request gitlab-org/gitlab-ce!24521

Search project tags via API

Closes #54401

See merge request gitlab-org/gitlab-ce!24385

This reverts merge request
https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/24388

Set ActionController raise_on_unfiltered_parameters to true

See merge request gitlab-org/gitlab-ce!24443

Bump the katex package to 0.10.0

See merge request gitlab-org/gitlab-ce!24478

add a note that GIT_STRATEGY is not supported for k8s executor

See merge request gitlab-org/gitlab-ce!23974

In https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/15475/diffs, a
significant amount of work went into eliminating N+1 queries in the
/api/groups/:id/projects endpoint. We can reuse the
`Entities::Project.prepare_relation` call on the projects.

In a group with 2,573 projects on GitLab.com, this change significantly
improves performance:

* 18019 SQL queries down to 21
* Time spent in DB: 70 s down to 384 ms

Closes https://gitlab.com/gitlab-org/gitlab-ce/issues/49845

Resolve "Remove `error_tracking` feature flag"

Closes #56213

See merge request gitlab-org/gitlab-ce!24306

Remove unwanted margin above suggested changes.

Closes #56389

See merge request gitlab-org/gitlab-ce!24419

Improvements for spec migration readme

See merge request gitlab-org/gitlab-ce!24440

Refer to https://github.com/KaTeX/KaTeX/pull/1700 for additional details.

Update vuex.md - swap PUT/POST methods

See merge request gitlab-org/gitlab-ce!24494

Fix Resource attribute bug

See merge request gitlab-org/gitlab-ce!24407

Update reference to ~Monitoring to be ~Monitor

See merge request gitlab-org/gitlab-ce!24489

Correct minimum yarn version in 11.6 -> 11.7 upgrade doc

Closes #56254

See merge request gitlab-org/gitlab-ce!24495

Cleanup stale +deleted repo paths on project removal (adjusts project removal bug)

Closes #46146

See merge request gitlab-org/gitlab-ce!24269

View epic permissions

See merge request gitlab-org/gitlab-ce!24483

Return the maximum group access level in the projects API

Closes #43684

See merge request gitlab-org/gitlab-ce!24403

1. When removing projects, we can end-up leaving the +deleted
repo path dirty and not successfully removing the non-deleted
namespace (mv process is not atomic and can be killed without
fully moving the path).

2. In order to solve that, we're adding a clean-up phase on
ensure which will schedule possible staled +deleted path deletion.
Note that we don't check the current state (if there is or not a
repo) in order to schedule the deletion. That's intentional
in order to leverage Gitlab::GitalyClient::NamespaceService#remove
idempotency and ensure consistency.

Add documentation for new NGINX Ingress metrics

Closes #56473

See merge request gitlab-org/gitlab-ce!24449

[EE Backport] Add notes filters for epics

See merge request gitlab-org/gitlab-ce!24372

Add flat-square badge style

Closes #30120

See merge request gitlab-org/gitlab-ce!24172

Use MR IID in Review Apps slug and domain

See merge request gitlab-org/gitlab-ce!24388

Merge branch '56328-frequent-items-initialisations-can-be-optimised-and-deferred-in-idlecallback' into 'master'

Resolve "Frequent Items Initialisations can be optimised and deferred in idleCallback"

Closes #56328

See merge request gitlab-org/gitlab-ce!24401