Comment 0 for bug 921637

Per Danilo/Linaro. There is not currently an exposed API to search for blueprints at all from a project group.

Unfortunately, the milestone tag code is not factored to make this easy, AFAICT. lp.registry.model.milestonetag.ProjectGroupMilestoneTag.specifications has the code.

Nice to haves along the way: searchTasks could accept a milestone tag.

Note that working on this would potentially add to tech debt: milestone tags work around other limitations, and building on them adds weight to a workaround.