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-rw-r--r--program/include/rcube_imap_cache.php2
1 files changed, 1 insertions, 1 deletions
diff --git a/program/include/rcube_imap_cache.php b/program/include/rcube_imap_cache.php
index 8ef5b71cb..b51bc6db9 100644
--- a/program/include/rcube_imap_cache.php
+++ b/program/include/rcube_imap_cache.php
@@ -853,7 +853,7 @@ class rcube_imap_cache
// @TODO: find better validity check for threaded index
if ($is_thread) {
// check messages number...
- if ($mbox_data['EXISTS'] != max(array_keys($index['depth']))) {
+ if ($mbox_data['EXISTS'] != @max(array_keys($index['depth']))) {
return false;
}
return true;