DER BitString Padding Incorrect

[anthok]

With the following example struct

#[derive(AsnType, Decode, Encode, Debug, PartialEq, Clone)]
pub struct PaddingError {
    #[rasn(tag(0))]
    pub normal: rasn::types::Integer,

    #[rasn(tag(1))]
    pub bitstring_1: rasn::types::BitString,

    #[rasn(tag(2))]
    pub bitstring_2: rasn::types::BitString,
}

let expected = hex::decode("3016800101810305e100820c03ee0800000400000001ed18").unwrap();
        let actual: Vec<u8> = rasn::der::encode(&PaddingError{
            normal: 1.into(),
            bitstring_1: BitString::from_vec([0xe1, 0x00].to_vec()),
            bitstring_2: BitString::from_vec([0xee,0x08,0x00,0x00,0x04,0x00,0x00,0x00,0x01,0xed,0x18].to_vec()),
        }).unwrap();
        assert_eq!(actual, expected);

We would expect the resulting bytes to look like
[48, 22, 128, 1, 1, 129, 3, 5, 225, 0, 130, 12, 3, 238, 8, 0, 0, 4, 0, 0, 0, 1, 237, 24]

Instead what we get from our encode is
[48, 21, 128, 1, 1, 129, 2, 0, 225, 130, 12, 0, 238, 8, 0, 0, 4, 0, 0, 0, 1, 237, 24]

[anthok]

Mistake on my end, closing ticket - no bug present