Fix an issue with viewing an empty board with milestone columns
- Viewing an empty board with milestone columns did a meaningless edge query. Don't do that.
- When creating the first milestone of a parent, force the indexing engine to rematerialize it inline. This sets hasMilestones properly. Otherwise, the daemons may take some time to fix this in the indexer.
- Viewed an empty board of a project with a milestone.
- Viewed a normal board.
- Created the first milestone of a project with a big queue of daemons, saw project state immediately fully reflect the project having milestones.
Reviewed By: chad
Maniphest Tasks: T10010
Differential Revision: https://secure.phabricator.com/D15206