The wizard to change the produced quantity of a manufacturing order was not
using the current produced quantity as the default value.
This was because the field mo_id was not present in the view (and not in
`fields` in default_get).
Adding the field as invisible to compute the default value for mo_id.
Correct typo in dictory lookup (using `[` instead of `(`)
Closes#17937
opw-749725