revisor does not honor proxy settings in config files at /etc/revisor/conf.d or in the environment setting or in package manager proxy settings or in KDE proxy settings or in yum.conf settings
revisor will however honor proxy settings if only the central fedora repository (not updates or anaconda updates or anything else special) is selected.
this is the latest version of revisor on f10 i386
This is tracked using https://bugzilla.redhat.com/show_bug.cgi?id=481445
There's also a workaround in that bug BTW