Description:
Yesterday, I ran yaourt -Syu, and one of the upgrades was from version 7.2.65-1 to 050325-1 of the vi package. The 7.2.65-1 package actually contained vim, whereas the 050325-1 package contains the original vi. So, I decided to install the vim package instead. However, it failed to install because a symlink "/usr/bin/rview" already existed:

$ ls -alt /usr/bin/rview
lrwxrwxrwx 1 root root 2 2008-12-14 19:14 /usr/bin/rview -> vi

Also, this symlink was not marked as being owned by any package:

$ pacman -Qo /usr/bin/rview
error: No package owns /usr/bin/rview

The symlink was still present (and unowned) after I removed the vi package ("yaourt -Rcs vi").

Additional info:
* package version(s)
vi 050325-1 (new), 7.2.65-1 (old)
vim 7.2.245-1
* config and/or log files etc.

Steps to reproduce:
Upgrade to the most recent version of the vi package, then try to install the vim package.