Space-naming Problem with Confluence Plug-In

There appears to be a bug when dealing with a mockup whose name has more than one word on it. I sent this to the support email address and then immediately remembered that with the 3-user license, support is forum-only -- so I'll post it here.

Here are the steps to recreate it in Confluence 3.0.2. Perhaps someone else can confirm the bug or report that it works on a different version of Confluence or something.

1) From a wiki page, create a new mockup
2) Add something to the mockup and "Save and Close" it.
3) Give it a name with a space in it (for example, I used the string "two words").
4) After it is saved, click the "edit this mockup" link
5) Make a change to the mockup
6) "Save and Close" again

Notice that a new mockup has been created, instead of a new version of the original. The name of the original mockup is "two words" and the name of the new mockup is "two+words". Since the name is different the second time, it is seen as a different mockup and so now there are two in the page.

I love the product.

Thanks,
John