F1 described bars that carry their own not-started marking and stopped
there. It now has the label naming where the running ones end, and the
choice between keeping that block and dropping it for one deadline order
— including why the second is a re-sort rather than a hidden heading,
which is the part a future change would otherwise get wrong.
The heading itself shipped a commit earlier without this; same feature,
so it is written up once here rather than split across two entries.
Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
