ASPxGridView - e.OldValues returns null for a combobox column

Hi i have a problem with the gridview in edit mode.
I have loaded the gridview from multiple datasources (some are just lookup tables)
But when i click edit on a row, and not change a certain value and try to access it using e.OldValues["columnName"] it gives me the string name and not the lookup ID, but if i change that data to something else then it works and gives me the ID instead of the name. Code below:
Load data from lookuptable and fill the grid with value=ID and text=Produkt
<dx:GridViewDataComboBoxColumn FieldName="Scoring" VisibleIndex="5">
                <PropertiesComboBox Spacing="0" ValueType="System.Int32" DataSourceID="dsScoringType" ValueField="id" TextField="Produkt">
                </PropertiesComboBox>
</dx:GridViewDataComboBoxColumn>
 The SQLDataSource that loads the lookup tables information
 <asp:SqlDataSource ID="dsScoringType" runat="server"
        ConnectionString="<%$ ConnectionStrings:halldbConnectionString %>"
        SelectCommand="SELECT [id], [Produkt] FROM [selScoringType]"
        OldValuesParameterFormatString="original_{0}">
</asp:SqlDataSource>
The GridViews RowUpdating event
protected void custGridview_RowUpdating(object sender, DevExpress.Web.Data.ASPxDataUpdatingEventArgs e)
{
            // If this hasent been changed the value will be a string with the name
            // If it has been changed though i get the correct data, that is the ID and not the name
            var scoringType = e.NewValues["Scoring"];
            var scoringType2 = e.OldValues["Scoring"];
}
Why is this behaving like this?