FabricationPart Slope Bug

using Autodesk.Revit.DB;

public static bool TryReadFabricationSlopeByBuiltInParameter(
    FabricationPart part,
    out double rawSlope,
    out string formattedSlope)
{
    // Lookup by the BuiltInParameter for Fabrication Slope.
    return TryReadFabricationSlope(
        part,
        part.get_Parameter(BuiltInParameter.FABRICATION_SLOPE_PARAM),
        out rawSlope,
        out formattedSlope);
}

public static bool TryReadFabricationSlopeByParameterTypeId(
    FabricationPart part,
    out double rawSlope,
    out string formattedSlope)
{
    // Lookup by the ForgeTypeId for Fabrication Slope. Revit 2022 and later.
    return TryReadFabricationSlope(
        part,
        part.GetParameter(ParameterTypeId.FabricationSlopeParam),
        out rawSlope,
        out formattedSlope);
}

private static bool TryReadFabricationSlope(
    FabricationPart part,
    Parameter? parameter,
    out double rawSlope,
    out string formattedSlope)
{
    rawSlope = 0.0;
    formattedSlope = string.Empty;

    if (parameter == null
        || parameter.StorageType != StorageType.Double
        || !parameter.HasValue)
    {
        return false;
    }

    double value = parameter.AsDouble();
    if (double.IsNaN(value) || double.IsInfinity(value))
        return false;

    rawSlope = value;

    /* Revit reports this parameter with the Common Slope spec. 
       This selects PipiingSlope display units;
       it does not change the raw parameter value. */

    formattedSlope = UnitFormatUtils.Format(
        part.Document.GetUnits(),
        SpecTypeId.PipingSlope,
        value,
        true);

    return true;
}