Using: SharePoint 2010 and Nintex Forms 2010 (1.6.0.0)

Using the List View control to get a list of documents from a different site within the site collection.  When I use the %20 in the Source SharePoint site name, the site is not found.  If I just leave it as a space, the site is found.

Example:

Source SharePoint site:  /sites/TeamServices/Team%20InfoShare/     (notice the %20 between Team and InfoShare)

Result:  The site is not found.

Source SharePoint site:  /sites/TeamServices/Team InfoShare/     (notice the space between Team and InfoShare)

Result:  The site is found - and the List dropdown of is populated.

It seems to me that the %20 should be a valid character.

Has anyone else seen this feature/bug when using the List View control?