From Bugzilla Helper:
User-Agent: Mozilla/5.0 Galeon/1.2.0 (X11; Linux i686; U;) Gecko/20020311
Description of problem:
Gnome-core should not require sawfish, as GNOME will work fine with other window
managers. Instead, gnome-core should require a meta-package, window manager,
which could be provided by sawfish, enlightenment, fvwm2, etc.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. rpm -q --requires gnome-core
2. Notice that sawfish is listed
The Requires: is needed so that people upgrading from previous versions that
used Enlightenment instead will be given the option to migrate to Sawfish by
default. Other WMs work with GNOME but they are unsupported.
The only issue here is saving some disk space, that isn't as important as
pulling in Sawfish on upgrades.