A time picked in the fall-back hour's repeat, in the form or by a resize
handle, now gets its pass from one rule. It keeps the pass the event was
opened with when it is that same time again. Otherwise it moves the way the
hand did, and stays on the right side of the event's other edge where it
can.
- The form can set an end in the hour after a second-pass start, and a time
changed and changed back is the time it was.
- Pulling a resize handle up the repeated hour shortens the event.
- A block running into the repeat from before it is drawn to the hour's
end, so a longer one never looks shorter.
- A drafted block opens the form at its own start and end instants.
- The repeated-hour zone label skips the long zone name, and the detail
screen's time lines are remembered.