CalendarExtender year change bug when setting StartDate and EndDate

[Yuki]

I am having the following problem with \[code\]CalendarExtender\[/code\] from AJAX Control Toolkit latest version: \[code\]AjaxControlToolkit, Version=4.1.7.123, Culture=neutral, PublicKeyToken=28f01b0e84b6d53e\[/code\].I set StartDate and EndDate properties in aspx.After opening the extender I click on calendar header to get to month view, and once again to reach year view:

If I click on the right arrow I reach the next screen of years, but clicking the left arrow does not allow me to reach the original list of years:

I can still navigate right until the last available year is shown, but if I clock on left arrow it will only go as back as this 2nd picture.ASPX code that shows the problem:\[code\]<asp:TextBox runat="server" ID="txtCalendar" /><asp:Button runat="server" ID="btnOpenCld" Text="Open" /><act:CalendarExtender runat="server" ID="cldExtender" TargetControlID="txtCalendar" PopupButtonID="btnOpenCld" StartDate="1/29/2013" EndDate="12/31/2035" />\[/code\]I tried various ways to set the start/end dates but the same problem remains.I have created a demo project that shows the problem.