FormatOptions always_show_scale doesn't always work

[dbalsom]

using

pub fn format_instruction(iced_i: &iced_x86::Instruction) -> String {
    let mut instr_text = String::new();
    let mut formatter = NasmFormatter::new();

    formatter.options_mut().set_always_show_segment_register(true);
    formatter.options_mut().set_add_leading_zero_to_hex_numbers(false);
    formatter.options_mut().set_always_show_scale(false);

    formatter.format(&iced_i, &mut instr_text);
    instr_text
}

I would have assumed this should eliminate scale *1 entries from appearing in disassembly.
yet disassembling [67, 80, 04, 2D, 49, 30, 00, 00, 05] still produces add byte [ds:ebp*1+3049h],5