Deal with Rails autoload instance variable resets

See merge request !10338

Disable pipeline & environment actions that are not playable

Closes #25385 and #24601

See merge request !10052

Refactor CI index page

Closes #29217

See merge request !9861

Add "search" optional param and docs for V4

Closes #30195

See merge request !10358

Workhorse 1.4.3

Closes gitaly#167 and gitaly#177

See merge request !10479

Convert value to string before setting Poll-Interval header

See merge request !10477

Fix subgroup repository disappearance if group was moved

Closes #30261

See merge request !10414

Implement Gitaly refs client

See merge request !9291

Notice that this param is being supported since V3, but we have not added the proper docs for it

Removes the duplicated search icon in emoji menu

Closes #30416 and #30016

See merge request !10472

Render PDFs in GitLab

See merge request !10419

Document how ETag caching middleware handles query parameters

See merge request !10482

Use NamespaceValidator::WILDCARD_ROUTES in ETag caching middleware

See merge request !10478

Potential fix for intermittent spec failure in award emoji specs

Closes #30399

See merge request !10476

Load a preview of Sketch 43 files

See merge request !10470

Make group skip validation in the frontend

Closes #29236

See merge request !10426

NamespaceValidator::WILDCARD_ROUTES is less restrictive than
ProjectPathValidator::RESERVED and we really have to avoid only
routes that contain wildcard names.

MR empty state

Closes #20854 and #20841

See merge request !7342

Rails auto-load (a development feature) can end up resetting instance
variables on classes. This breaks Gitlab::GitalyClient, which uses
instance variables to keep global hashes to look up channels and
addresses. This change adds code that regenerates the hashes if they
suddenly become nil.

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

Return an empty array when dependencies is an empty array

Closes #30316 and gitlab-ci-multi-runner#2284

See merge request !10359

Added mock deployment and monitoring service with environments fixtures

See merge request !10379

Hover and then click seems to make this work more reliably.

Closes #30399

Sketch 43 files are technically a zip file, so the JavaScript opens the
zip file & locates a preview.png which is just a quick preview of the
last sketch page edited. After that is loaded it simply places the image
into the DOM

Issue boards list template in JS file

See merge request !9958