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-rw-r--r--lib/Net/IMAP/Sync.pm4
1 files changed, 2 insertions, 2 deletions
diff --git a/lib/Net/IMAP/Sync.pm b/lib/Net/IMAP/Sync.pm
index 26303a6..bf56519 100644
--- a/lib/Net/IMAP/Sync.pm
+++ b/lib/Net/IMAP/Sync.pm
@@ -657,12 +657,12 @@ sub append($$@) {
my @uids;
foreach (split /,/, $uidset) {
if (/\A([0-9]+)\z/) {
- $UIDNEXT = $1 + 1 if $UIDNEXT <= $1;
+ $UIDNEXT = $1 + 1 if defined $UIDNEXT and $UIDNEXT <= $1;
push @uids, $1;
} elsif (/\A([0-9]+):([0-9]+)\z/) {
my ($min, $max) = $1 <= $2 ? ($1,$2) : ($2,$1);
push @uids, ($min .. $max);
- $UIDNEXT = $max + 1 if $UIDNEXT <= $max;
+ $UIDNEXT = $max + 1 if defined $UIDNEXT and $UIDNEXT <= $max;
} else {
$self->panic($_);
}