This is tricky: the query was being run in
`ObjectStorage::Extension::RecordsUploads#retrieve_from_store!`, but we can't
just add batch loading there, because the `#upload=` method there would use the
result immediately, making the batch only have one item.

Instead, we can pre-emptively add an item to the batch whenever an avatarable
object is initialized, and then reuse that batch item in
`#retrieve_from_store!`. However, this also has problems:

1. There is a lot of logic in `Avatarable#retrieve_upload_from_batch`.
2. Some of that logic constructs a 'fake' model for the batch key. This should
   be fine, because of ActiveRecord's override of `#==`, but it relies on that
   staying the same.

Support presigned multipart uploads

See merge request gitlab-org/gitlab-ce!18855

Remove N+1 query for author in issues API

See merge request gitlab-org/gitlab-ce!19345

Resolve "Wiki print view is broken"

Closes #47236

See merge request gitlab-org/gitlab-ce!19392

Support smarter system notes

Closes #33166

See merge request gitlab-org/gitlab-ce!17164

Bring back the EE changes to CE to authentication of builds

See merge request gitlab-org/gitlab-ce!19391

Updated vendored ADO template

See merge request gitlab-org/gitlab-ce!19380

Adjust insufficient diff hunks being persisted on NoteDiffFile

See merge request gitlab-org/gitlab-ce!19399

Include all ancestors milestones in json list & autocomplete

Closes #36862

See merge request gitlab-org/gitlab-ce!19317

Resolve "Admin area > Import sources and restricted visibility level checkboxes styling"

Closes #47266

See merge request gitlab-org/gitlab-ce!19397

Hide archived projects from `shared_projects`

Closes #47206

See merge request gitlab-org/gitlab-ce!19361

Use gitlab-shell 7.1.4

See merge request gitlab-org/gitlab-ce!19360

This currently causes 500's errors when loading the MR page
(Discussion) in a few scenarios.

We were not considering detailed diff headers such as
"--- a/doc/update/mysql_to_postgresql.md\n+++ b/doc/update/mysql_to_postgresql.md"
to crop the diff. In order to address it, we're now using
Gitlab::Diff::Parser, clean the diffs and builds Gitlab::Diff::Line objects
we can iterate and filter on.

Resolve "New project visibility level description alignment"

Closes #47147 and #46885

See merge request gitlab-org/gitlab-ce!19389

Resolve "Markdown blockquote is not displaying properly"

Closes #47115

See merge request gitlab-org/gitlab-ce!19395

Backport of Resolve "Epics Page Styling is broken"

See merge request gitlab-org/gitlab-ce!19407

Resolve "Header sub-nav dropdown triggers missing active state on dropdown open"

Closes #47273

See merge request gitlab-org/gitlab-ce!19402

Resolve "Projects \/ menu displays scrolls bar for short period of time"

Closes #47158

See merge request gitlab-org/gitlab-ce!19404

Fix markdown code highlighting

Closes #47131

See merge request gitlab-org/gitlab-ce!19325

Resolve: Labels are not displayed after selection

Closes #47250

See merge request gitlab-org/gitlab-ce!19394

Resolve "Import from github button has no left-margin"

Closes #47267

See merge request gitlab-org/gitlab-ce!19396

This was being masked by the statement cache because only one author was used
per issue in the test..

Also adds support for an Rspec matcher `exceed_all_query_limit`.

Write repository_storages without type casting

Closes #46238

See merge request gitlab-org/gitlab-ce!19367

Fix responsive layout for new MR metadata form

See merge request gitlab-org/gitlab-ce!19390

Resolve "Styling of acceptance terms page is broken"

Closes #47162

See merge request gitlab-org/gitlab-ce!19371

Resolve "Error message after installing ingress does not ocupy full width"

Closes #46754

See merge request gitlab-org/gitlab-ce!19376

Fix labels page missing margins and oversized fonts

Closes #46706

See merge request gitlab-org/gitlab-ce!19383

Fix gitea import page

Closes #46996

See merge request gitlab-org/gitlab-ce!19382

Fix navigation theme preference heading

See merge request gitlab-org/gitlab-ce!19385