[Fedora-livecd-list] Why --bind mount /var/cache/yum?

[Warren Togami <wtogami redhat com>]

imgcreate/creator.py:
        # bind mount system directories into _instroot
        for (f, dest) in [("/sys", None), ("/proc", None), ("/dev", None),
                          ("/dev/pts", None),
                          (cachesrc, "/var/cache/yum")]:
            self.__bindmounts.append(BindChrootMount(f, self._instroot, 
dest))

Anyone know why we are --bind mounting /var/cache/yum from the host into 
the chroot during install when we aren't using it?

Warren Togami
wtogami redhat com