Merge branch '39181-gitlab-backgroundmigration-deserializemergerequestdiffsandcommits-error-nomethoderror-undefined-method-map-for-nil-nilclass' into 'master'

Resolve "Gitlab::BackgroundMigration::DeserializeMergeRequestDiffsAndCommits::Error: #<NoMethodError: undefined method `map' for nil:NilClass"

Closes #39181

See merge request gitlab-org/gitlab-ce!14907

(cherry picked from commit 526c4761)

9245bfc2 Handle null serialised commits in background migration

Bump Git version to 2.13.6

See merge request gitlab-org/gitlab-ce!14906

(cherry picked from commit 4220cd0f)

ca2d1f9f Bump Git version to 2.13.6

Update new project docs

See merge request gitlab-org/gitlab-ce!14893

(cherry picked from commit 7685314f)

e11ef753 Update new project docs

Remove banner from pipelines page

Closes #38641, #39051, and #38827

See merge request gitlab-org/gitlab-ce!14849

(cherry picked from commit 7996be60)

87cff693 Remove banner from pipelines page
c88fef16 Format banner like service desk
05f21311 Update link to settings page instead of documentation page
68343b99 Improve mobile view
ea852324 Removes unneeded CSS
4eac69c5 Remove extra class breaking layout in smaller screens
db5ebef3 Improve check for permissions on empty project page

update postgresql requirements

See merge request gitlab-org/gitlab-ce!14885

(cherry picked from commit 03699653)

dbfc82df update postgresql requirements

Fix alignment for indeterminate marker in dropdowns

Closes #38963

See merge request gitlab-org/gitlab-ce!14809

(cherry picked from commit 22ef1c1a)

56e6dab0 Fix alignment for indeterminate marker in dropdowns

Popen with a timeout

See merge request gitlab-org/gitlab-ce!14872

(cherry picked from commit 8aa6e7ef)

b88e8aae Popen with a timeout
f09a7b3c Linter fixes

Docs for Add "implements" to the default issue closing message regex

See merge request gitlab-org/gitlab-ce!14880

(cherry picked from commit fde837d5)

82f9e809 Update automatic_issue_closing.md

Merge branch 'fix/sm/38960-collect-usage-pings-gcp-cluster-enabled-and-gcp-cluster-disabled-instead-of-gcp-cluster-count' into 'master'

Collect usage pings `Gcp::Cluster.enabled` and `Gcp::Cluster.disabled`, instead of `Gcp::Cluster.count`

Closes #38960

See merge request gitlab-org/gitlab-ce!14807

(cherry picked from commit 07623179)

a6b2387d Collect usage pings `Gcp::Cluster.enabled` and `Gcp::Cluster.disabled`, instead…

Remove global dropdown shortcut from help modal

Closes #39111

See merge request gitlab-org/gitlab-ce!14876

(cherry picked from commit 93139aa8)

cb29df7f Remove global dropdown shortcut from help modal

Security fixes for 10.1 RC

See merge request gitlab/gitlabhq!2209

On master, so we should move them under authenticated.

Prepare 10.1 RC1 release

See merge request gitlab-org/gitlab-ce!14847

[10.0 CE] Prevent "Related Issues" from leaking confidential issues

See merge request gitlab/gitlabhq!2193

Move project repositories between namespaces when renaming users (10.0)

See merge request gitlab/gitlabhq!2200

[10.0] Prevent a persistent XSS in user-provided markup

See merge request gitlab/gitlabhq!2199

Fix arbitrary redirect location vulnerability

See merge request gitlab/gitlabhq!2192

Escape user name in filtered search bar

See merge request gitlab/gitlabhq!2194

Fixes from CSS refactor

Closes #39001 and #38939

See merge request gitlab-org/gitlab-ce!14828

Cache issuable template names

See merge request gitlab-org/gitlab-ce!14823

Update image commenting MR link in docs

See merge request gitlab-org/gitlab-ce!14816

Use image-url instead of url so that asset pipeline can do it's thing

Closes #38980

See merge request gitlab-org/gitlab-ce!14799

Developer can create/edit/delete milestones

See merge request gitlab-org/gitlab-ce!14797

Add explicit test to test resolved discussion toggle content

See merge request gitlab-org/gitlab-ce!14796

Fix text for the merge request lock system note

Closes #38941

See merge request gitlab-org/gitlab-ce!14779

Resolve "Superfluous "Export" in "Advanced settings" of project settings"

Closes #38574

See merge request gitlab-org/gitlab-ce!14773

Fix wiki empty page translation namespace not being removed

Closes #38920

See merge request gitlab-org/gitlab-ce!14759

Add image discussion docs

Closes #38879

See merge request gitlab-org/gitlab-ce!14743

Locked issues / mrs docs

Closes #38880

See merge request gitlab-org/gitlab-ce!14770

backport for gitlab-ee!2869

See merge request gitlab-org/gitlab-ce!14505

Resolve "Private Avatars are not CDN compatible"

Closes #38245 and gitlab-com/support-forum#2476

See merge request gitlab-org/gitlab-ce!14443

fix multiple notifications from being sent for multiple labels

Closes #37691

See merge request gitlab-org/gitlab-ce!14798

Make "merge ongoing" check more consistent

Closes #39032

See merge request gitlab-org/gitlab-ce!14825

Update dependencies license list

See merge request gitlab-org/gitlab-ce!14845

Add project fields to import project by url

Closes #39028

See merge request gitlab-org/gitlab-ce!14822

Simplify project page

Closes #37399 and #38839

See merge request gitlab-org/gitlab-ce!14669

fix the import :milestone from adding the group_id

Closes #35580

See merge request gitlab-org/gitlab-ce!14657