The Wonderland Board

In the Return to Wonderland editor, when one clicks "Save", the name that one previously saved the level as automatically appears. This has been thought to always be the case, until now. I have discovered that if one saves their level as "UNTITLED" then clicks "Save" again then "UNTITLED" will not appear. Instead there will be nothing; the input will be blank.

That's strange. I think I've done that before, but I can't remember the results.