Google adds>Link ""Word Problems for grades 3 to 5", is taking user to TestLandingPage? for the 1-st tiem.2-nd time it takes the user to beta.curriki.org.

Google Adds >Create an AdWordsJump Landing page> Copy & paste the code to my adds page from the documentation for Google Adds,

If I click the link, "Word Problems for grades 3 to 5", First time I am taken to the 'http://beta.curriki.org/xwiki/bin/view/AdWordsJump/TestLandingPage?xpage=popup' .
If I click the link ""Word Problems for grades 3 to 5" again, then I am taken to the beta.curriki.org home page.

I feel, 2-nd time click should not take me to beta.curriki.org... In other links this is not happening...( In the code, I do not see code for redirecting to beta.curriki.org.)

I am not sure if this is a bug..Please check