what happen to output format when an expression requires two jobs`

[piccolbo]

it should delay the format change to the last job, but I don't think that's what happens

[piccolbo]

this works

as.data.frame(output(transmute(ungroup(transmute(group(input(mtcars), cyl, carb), mmpg = mean(mpg)), cyl), max(mmpg)), format = "csv"))

checked that the first job outputs native by debugging mr.local