* Use "ftp.debian.org" not "http.debian.net" as the default Debian
archive. (http.debian.net tends to defeat certain kinds of cacheing,
and can also have more skew.)
+ * Better error message for use of UNRELEASED suite. Closes: #720523.
+ * Do not canonicalise suite more than once. Related to: #720526.
--
}
sub canonicalise_suite () {
+ return if defined $csuite;
+ fail "cannot operate on $isuite suite" if $isuite eq 'UNRELEASED';
$csuite = archive_query('canonicalise_suite');
if ($isuite ne $csuite) {
# madison canonicalises for us