If you add a task(s) to a revision via the "Edit Maniphest Tasks" link, the task(s) doesn't get resolved and closed when that revision is landed.
Why should this behavior be any different from adding "Fixes T123" in the revision summary? Currently, in order to add a task to a revision so that it gets closed upon landing, one has to "Edit Revision" and add "Fixes T123" in the summary.
Also, every once in a while some new developer in our team sees "Maniphest Tasks: " in the revision template that is displayed by arc diff. Adding the task to this field again does not close the task. Is this field still used and is it supposed to ever show up in the revision template?