Please tag nautilus-2.28.1-1.fc12 for F12 final. This is a scheduled upstream bugfix release, part of Gnome 2.28.1 release.

Tested on my machine, works as expected.

Major changes in 2.28.1 are:
Translation updates
Correctly position icons for file drops
Fix lingering unmount menu item
Update tracker support for version 0.7
Fix crashes
Set correct recent files info
Make changing visible list view columns instant
Allow focusing the list view by clicking outside a line
* Use right gconf key for the disable_tabs setting