When we save merge request diffs to the database, we need to expand the diff
before doing so. That's so that we can expand diffs (within the normal limits)
without hitting the repository, but just by going to the database.

This is done implicitly - diffs are expanded unless we say otherwise. However,
we have another option we can pass, that lets us enforce diff size limits, that
defaults to true.

Prior to this commit:

- The Rugged code path defaulted to setting `expanded: true` and
  `enforce_limits: true`.
- The Gitaly code path defaulted to setting `expanded: false` and
  `enforce_limits: true`.

This was introduced by eb36fa17, which
implemented the initial feature. Since then, if the `gitaly_diff_between`
feature flag was enabled, MRs would have diffs that could not be expanded in
some cases, with no fix other than to disable the feature flag and force push to
the MR to refresh the diff in the database.

Always serve favicon from main GitLab domain so that CI badge can be drawn over it

Closes #47802

See merge request gitlab-org/gitlab-ce!20263

Enabling Doorkeeper reuse_access_token option

Closes #46278

See merge request gitlab-org/gitlab-ce!20200

Rails5 fix MySQL milliseconds problem in specs

Closes #48430

See merge request gitlab-org/gitlab-ce!20221

Rails5 fix Mysql comparison failure caused by milliseconds problem

Closes #48432

See merge request gitlab-org/gitlab-ce!20222

Merge branch '43472-remove-environment-scope-field-on-cluster-creation-form-for-core-starter-plans' into 'master'

Resolve "Remove "environment scope" field on cluster creation form for core/starter plans"

Closes #43472

See merge request gitlab-org/gitlab-ce!19643

Fix OAuth application authorization screen to appear with every access

See merge request gitlab-org/gitlab-ce!20216

Prettifies pipeline's javascript code

See merge request gitlab-org/gitlab-ce!20217

Prevent fetching diffs and discussions data unnecessarily on MR page

Closes #48493

See merge request gitlab-org/gitlab-ce!20190

Schedule workers to delete non-latest diffs in post-migration

See merge request gitlab-org/gitlab-ce!20013

Keep label on issue when moving

Closes #46098

See merge request gitlab-org/gitlab-ce!20036

Add how to manage a regression

See merge request gitlab-org/gitlab-ce!17530

Resolve "SQL Queries are not shown from the Performance Bar in Safari"

Closes #48515

See merge request gitlab-org/gitlab-ce!20233

Resolve "Sidebar on jobs and wikis is missing at small widths"

Closes #48471

See merge request gitlab-org/gitlab-ce!20188

Resolve "Markdown header `code` does not have the correct font-size"

Closes #48549

See merge request gitlab-org/gitlab-ce!20229

Add note to README about using $CI_COMMIT_REF_SLUG when using forward-slashes

See merge request gitlab-org/gitlab-ce!20209

Fix paragraph line height for emoji

Closes #48003

See merge request gitlab-org/gitlab-ce!20137

Don't hash user ID in OIDC subject claim

Closes #47791

See merge request gitlab-org/gitlab-ce!19784

Revert merge request discussion buttons padding

Closes #48212

See merge request gitlab-org/gitlab-ce!20060

Resolve "No UI element to edit group label"

Closes #48255

See merge request gitlab-org/gitlab-ce!20192

FindAllCommits mandatory

Closes gitaly#326

See merge request gitlab-org/gitlab-ce!20242

Commits between in Gitaly only

Closes gitaly#315

See merge request gitlab-org/gitlab-ce!20239

expose permissions on types

Closes #47695

See merge request gitlab-org/gitlab-ce!20152

Resolve "Tooltips flicker when highlighting award emoji"

Closes #48568

See merge request gitlab-org/gitlab-ce!20235

#39604 - Change top-right avatar immediately upon avatar change

Closes #39604

See merge request gitlab-org/gitlab-ce!20119

This adds a reusable way to expose permissions for a user to types in
GraphQL.

Resolve "Merge request refactor displays changes dropdown incorrectly"

Closes #48497

See merge request gitlab-org/gitlab-ce!20237