Re: Make first dag run optional when catchup is False

[Daniel Standish]

One concern I have with the idea of catchup="none" vs catchup="last" is, it
really only controls what is the first run for the dag;  other than that
there is not one bit of difference.  E.g. if you have some runs on a daily
dag, and you pause it for a week, when you turn it back on, they both do
the exact same thing.  In part because of this it feels like catchup is not
the right place to locate this control.  The question of "what will be the
first run" seems like it might more properly located with (1) the
start_date and (2) the schedule (i.e. the timetable).