This is all the page shows:

{"aID":"48","arHandle":"Sidebar","cID":"69","error":false,"bID":"49"}

The page's URL is:
index.php?cID=69&arHandle=Sidebar&btID=17&mode=edit&ccm_token=1283382958:845b5f25be9005f9336a53e25704684a

This happened when I added a survey with three questions to a testing site with a "Sidebar" area.

Not a big deal to me, it's just a testing site. But thought it might be a bug.