errors in the gui whenquantitities are of type=np.float64 and no unit given

This is a repost of my original message in the former "develop" channel: https://discord.com/channels/1201445470485106719/1207666216689205298/1213067517258366977

Hi, I get errors in the gui that are related to quantitities that are of type=np.float64 when no unit is specified. That is the error:

  42 | } else if (unit instanceof UnitMathJS) {
  43 |   unit = unit.clone()
  44 | } else {
> 45 |   throw Error('Please provide the unit as a string or as an instance of Unit.')
     | ^  46 | }
  47 | this.mathjsUnit = unit
  48 | // this._labelabbreviate = undefined

and that is the code snippet that causes the error:

class UVVisNirTransmissionResult(MeasurementResult, ArchiveSection):
    """
    Class autogenerated from yaml schema.
    """

    m_def = Section()
    type = Quantity(
        type=MEnum(["Transmission", "Absorbance"]),
        description="type of measurement",
        a_eln={"component": "RadioEnumEditQuantity"},
    )
    transmission = Quantity(
        type=np.float64,
        description="transmittance",
        a_eln={"component": "NumberEditQuantity"},
        shape=["*"],
    )
    wavelength = Quantity(
        type=np.float64,
        description="wavelength",
        a_eln={"component": "NumberEditQuantity", "defaultDisplayUnit": "nm"},
        shape=["*"],
        unit="nm",
    )

The whole Python plugin can be found here: https://github.com/FAIRmat-NFDI/AreaA-data_modeling_and_schemas/tree/127-add-transmission-plugin/transmission/transmission_plugin/uv_vis_nir_transmission_plugin

Please see also the comments to this post in discord: https://discord.com/channels/1201445470485106719/1213103185020059718 @mscheidg