API: Use find_branch! in all places (!21614) · Merge requests · GitLab.org / GitLab FOSS · GitLab

Robert Schilling requested to merge api-promote-find-branch into master Sep 08, 2018

What does this MR do?

Use find_branch! helper whenever possible in the API.

What are the relevant issue numbers?

Closes https://gitlab.com/gitlab-org/gitlab-ce/issues/51250

Does this MR meet the acceptance criteria?

Changelog entry added, if necessary
[-] Documentation created/updated
[-] Tests added for this feature/bug
Conforms to the code review guidelines
Conforms to the merge request performance guidelines
Conforms to the style guides
[-] Conforms to the database guides

@rymai Can you take a look on that one?