Enable fast task lists for merge requests
What does this MR do?
Enables the new fast task list code (https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/23938) for merge requests.
What are the relevant issue numbers?
Closes #19745 (closed)
Does this MR meet the acceptance criteria?
[ ] Changelog entry added, if necessary[ ] Documentation created/updated via this MR[ ] Documentation reviewed by technical writer or follow-up review issue created-
Tests added for this feature/bug -
Tested in all supported browsers -
Conforms to the code review guidelines -
Conforms to the merge request performance guidelines -
Conforms to the style guides [ ] Conforms to the database guides-
[ ] Link to e2e tests MR added if this MR has Requires e2e tests label. See the [Test Planning Process](https://about.gitlab.com/handbook/engineering/quality/test-engineering/). -
Security reports checked/validated by reviewer
Edited by Brett Walker