Problem
The minimal config system landed in cycle 37 (pitch-370009, #1391), and the
first thing its own review said about it was "don't make the user repeat
values": the same option had to be written out in several places of an
experiment's configuration, with nothing keeping the copies in agreement.
Appetite
One week. This is one of the two improvements the configuration bet named
and did not have room for, not a new line of work.
Solution
Remove the duplicated options and let the places that need the same value share
one, as #1412 does.
Progress
The other improvement that bet named, enabling externally developed components,
has still not been picked up.