Three distinct bugs:

Breadcrumbs link to previous version of page
On this page:

http://extranet.atlassian.com/pages/diffpages.action?originalId=693437023&pageId=693437027

The link in the breadcrumbs (the only link back to the page) links to here:

http://extranet.atlassian.com/pages/viewpage.action?pageId=693437027

Which isn't the correct version of the page.

No link from previous version of page back to current version

When on this page:

http://extranet.atlassian.com/pages/viewpage.action?pageId=693437027

There is no link back to 'view current version'. (see screenshot)

Breadcrumbs broken on view previous version of page

Breadcrumbs say:
1. Dashboard 2. > Undefined Space 3. > Technical Support Survey