Closed Issue: MaskedEditExtender Date mask does not autofill with the AutoCompleteValue [9192]

When I enter a value into the text box (i.e. 12), then tab out, it does not fill as expected, and instead displays "12::".

<asp:TextBox ID="StartTime" runat="server" Width="160px" TabIndex="7" SkinID="InputTextBox" />
<ajaxToolkit:MaskedEditExtender ID="MaskedEditExtender3" runat="server"
TargetControlID="StartTime"
Mask="99:99"
MessageValidatorTip="false"
OnInvalidCssClass="MaskedEditError"
MaskType="Time"
AutoCompleteValue="00:00"
AcceptAMPM="False"
CultureName="en-US" />
Comments: This ticket was filed for a pre-15.1 version of AJAX Control Toolkit. If this is still an issue in v15.1 or later, please create a new inquiry.