Change a field on a held request at a level configured to change it.

Change a field on a held request at a level configured to change it.

The change goes into the payload the worker will replay, and is recorded with the step and the person so every later level sees what moved. Refused for a value the field does not take, and for one outside the values this level was narrowed to; the value the level was handed may always be chosen again, which undoes its change.