Show column in modal for insert but not update

[WHI2020]

I read that you can do Edit: () => null to remove a field from the form, but what if you want it to appear in the modal for insert, but not for updates?

Currently I'm trying this
Edit: ({ cell, column, row, table }) => {
if (!!table.getState().creatingRow) return null
else return <MRT_EditCellTextField cell={cell} column={column} row={row} table={table} />
}

But this creates an infinite loop. What should I be returning when I want the normal input?

Edit: I think I can just do something like this

muiEditTextFieldProps: ({ table }) => (!!table.getState().creatingRow ? {} : { sx: { display: "none" } })

Thanks,
BIll