icons/hicolor vs icons/gnome

[Luca Ferretti <elle uca libero it>]

It seems that currently icons in gnome-icon-theme are installed in both
$(prefix)/share/icons/gnome and $(prefix)/share/icons/hicolor.

ChangeLog file report 

        2003-12-18  Jody Goldberg <jody gnome org>
                                                                                        * configure.in : Add a pkgconfig file And bump the version so that CVS is > than the last release
        Move stock and app icons into hicolor from gnome so that they
        exist even if a gnome theme is not selected (eg the default)
        
Is it a correct behavior? Or should all icons be installed ONLY under
$(prefix)/share/icons/hicolor?