What does this MR do?
Allow blocking merge requests to be configured
GitLab has model-level support for the idea of one merge request "blocking" another from being merged - the second MR can only be merged once the first one has, itself, been merged. We also show any existing blocks in the merge request widget.
This MR adds support for adding and removing these blocks when creating or editing a merge request.
Frontend changes mostly by
Sam Bigelow <firstname.lastname@example.org>
Does this MR meet the acceptance criteria?
Documentation created/updated or follow-up review issue created
Code review guidelines
Merge request performance guidelines
Separation of EE specific content
Performance and testing
Review and add/update tests for this feature/bug. Consider all test levels. See the Test Planning Process.
Tested in all supported browsers
If this MR contains changes to processing or storing of credentials or tokens, authorization and authentication methods and other items described in the security review guidelines:
Label as security and @ mention
The MR includes necessary changes to maintain consistency between UI, API, email, or other methods
Security reports checked/validated by a reviewer from the AppSec team
Part of #9688 (closed)