EditContext.IsModified() becomes true when using TelerikDateTimePicker in EditForm

[Joel]

I have a Telerik Grid and EditForm side-by-side on a page. The EditForm displays the selected object upon clicking a grid row. Below is an excerpt of my custom form component.

@typeparam TEntity where TEntity : class, IEntity, new()

<div>
    <TelerikGrid 
        @ref="GridRef"
        Pageable="true"
        Sortable="true"
        Resizable="true"
        ShowColumnMenu="true"
        Reorderable="true"
        PageSize="50"
        SelectionMode="@GridSelectionMode.Single"
        SelectedItems="@_selectedItems"
        SelectedItemsChanged="@((IEnumerable<TEntity> list) => OnGridSelectedItemsChanged(list))"
        OnRowClick="@OnGridRowClick"
        OnRead="GetGridData"
        EnableLoaderContainer="true">
        @* toolbar, columns, etc. *@
    </TelerikGrid>

    <EditForm EditContext="@_editContext" OnSubmit="OnSubmitAsync">

        <TelerikDateTimePicker Placeholder=" "
            Value="(DateTime?)PropertyValue"
            ValueExpression="ValueExpression<DateTime?>()"
            ValueChanged="(DateTime? val) => OnValueChanged(val)"
            Readonly="true">
        </TelerikDateTimePicker>

    </EditForm>
</div>

@code {
    private EditContext? _editContext;
    private IEnumerable<TEntity> _selectedItems = Enumerable.Empty<TEntity>();
    private TEntity? _selectedItem;    

    [CascadingParameter] public TEntity? Entity { get; set; }

    protected override void OnInitialized()
    {
        _editContext = new(Entity);
        _editContext.OnFieldChanged += OnFieldChanged!;
    }

    // Override the grid's built-in row selection by handling the SelectedItemsChanged event. Do not execute any logic in it to let the OnGridRowClick handle the selection.
    // https://docs.telerik.com/blazor-ui/knowledge-base/grid-select-or-deselect-item-on-row-click
    private void OnGridSelectedItemsChanged(IEnumerable<TEntity> selectedList)
    {
    }

    private async Task OnGridRowClick(GridRowClickEventArgs args)
    {
        var currItem = args.Item as TEntity;

        if (currItem?.Id == _selectedItem?.Id) return;

        var discardChanges = await ConfirmDiscardFormChangesAsync();

        if (!discardChanges) return;

        _selectedItems = new[] { currItem };
        _selectedItem = _selectedItems.First();  
    }

    private async Task OnValueChanged(object? value)
    {
        // not getting fired when grid's selected item is changed, which is good
    }

    private void OnFieldChanged(object sender, FieldChangedEventArgs args)
    {
        // gets fired when grid's selected item is changed
        // _editContext.IsModified() is true here
    }
}

 

Whenever the form displays an item upon clicking a different row with DateTime field value different from the previously selected one, the EditContext's IsModified() becomes true. This is not the case when I replace the TelerikDateTimePicker with Blazor's InputDate component.