Convert project merge request into group merge request

When changes span multiple projects this isn't always obvious from the onset. It is common for a feature or bug fix to begin by working on one project and then realize part the way through that changes to multiple projects are required. This realization could easily occur after opening the project merge request.

GitLab should make it easy to convert a project merge request to a group merge request.

Proposal

• Add a button to project merge request to convert a project merge request into a group merge request.
• Detect when creating a group merge request if a project merge request already exists for some of the projects and automatically merge into the group merge request

Links / references