Merge branch 'fix/builds-api-builds-for-commit-search' into 'master'

Find all builds for commit if there are multiple pipelines for it

## What does this MR do?

This MR fixes a builds API. When multiple pipelines were triggered for a commit, then API returned builds only from the last pipeline.

## What are the relevant issue numbers?

Closes #18912  
Closes #19243 

## Does this MR meet the acceptance criteria?

- [x] [CHANGELOG](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CHANGELOG) entry added
- [x] [Documentation created/updated](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/doc/development/doc_styleguide.md)
- [x] API support added
- Tests
  - [x] Added for this feature/bug
  - [x] All builds are passing
- [x] Conform by the [style guides](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CONTRIBUTING.md#style-guides)
- [x] Branch has no merge conflicts with `master` (if you do - rebase it please)
- [x] [Squashed related commits together](https://git-scm.com/book/en/Git-Tools-Rewriting-History#Squashing-Commits)

See merge request !4849

1 files changed, 1 insertions, 0 deletions

diff --git a/CHANGELOG b/CHANGELOG
index dcec98469cb..f25b424d115 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,6 +1,7 @@
 Please view this file on the master branch, on stable branches it's out of date.
 
 v 8.10.0 (unreleased)
+  - Fix commit builds API, return all builds for all pipelines for given commit. !4849
   - Replace Haml with Hamlit to make view rendering faster. !3666
   - Wrap code blocks on Activies and Todos page. !4783 (winniehell)
   - Display last commit of deleted branch in push events !4699 (winniehell)