From 42a6fc1794099cb2585d3c290e42a20d5ef56b89 Mon Sep 17 00:00:00 2001
From: Eric Wong <e@yhbt.net>
Date: Tue, 7 Jul 2020 20:37:37 +0000
Subject: imap: avoid warnings on non-slice mailboxes

Non-slice mailboxes never have messages themselves,
so we must not assume a message exists when sending
untagged EXISTS messages.
---
 lib/PublicInbox/IMAP.pm | 1 +
 1 file changed, 1 insertion(+)

(limited to 'lib/PublicInbox/IMAP.pm')

diff --git a/lib/PublicInbox/IMAP.pm b/lib/PublicInbox/IMAP.pm
index d8c898f4..8ab4b1e7 100644
--- a/lib/PublicInbox/IMAP.pm
+++ b/lib/PublicInbox/IMAP.pm
@@ -246,6 +246,7 @@ sub uo2m_extend ($$;$) {
 	my $base = $self->{uid_base};
 	++$beg;
 	my $uids = $self->{ibx}->over->uid_range($beg, $base + UID_SLICE);
+	return $uo2m if !scalar(@$uids);
 	my @tmp; # [$UID_OFFSET] => $MSN
 	my $write_method = $_[2] // 'msg_more';
 	if (ref($uo2m)) {
-- 
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