Show issues of subgroups in group-level issue board
- In the current implementation of group issue boards (https://gitlab.com/gitlab-org/gitlab-ee/issues/928), we only show issues across all projects of that group.
- It would be vastly helpful to show issues of projects that belong to subgroups of that particular group.
- We need to figure out and implement labels from ancestor groups before doing this one, to make it consistent, i.e. &22 (closed)
- We should also maintain API consistency for this issue too.
A group board for group-a should contain all issues in all project-1, project-2, project-3, project-4, project-5, project-6.
A group board for group-aa should contain all issues in all project-1, project-2, project-3.
Issue board card path: