I am debugging an issue on my code caused by KB2894843. I know that MS has made EnableviewstateMAC  = true in this KB update.  The below piece of code is working fine in redirecting from page 1 to page 2 on click of submit except in the page 2  after redirecting from page 1, post back value is true. It is treating the page 2 as post back but ideally it should be true. I am not sure why it is treat it as post back.  Appreciate any help on this.
 
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<%@ Page Language="vb" AutoEventWireup="false" CodeBehind="Page1.aspx.vb" Inherits="WebApplication1._Default" %>
 
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
 
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server"&g ...

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