Double Logo on The Dashboard when Confluence is Configured to Use Documentation Theme

Steps to Reproduce:

1. Configured Confluence to use "Default Theme"
2. Access Dashboard, it will display only one logo as describe on Confluence 5.0 release notes
   
3. Change the Global theme to "Documentation Theme"
4. Access Dashboard, it will display two logo on the navigation bar and header as describe here:
   
5. This behavior persist in "Space Directory" and "People Directory"

Expected Results:

Confluence should make dashboard global as it is not tied to any theme yet (not content such as pages/blogs) and uniform the behavior to rendered the page as describe on the release notes: