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-rw-r--r--program/include/rcube_imap.php2
1 files changed, 1 insertions, 1 deletions
diff --git a/program/include/rcube_imap.php b/program/include/rcube_imap.php
index 484e70bd1..8df723030 100644
--- a/program/include/rcube_imap.php
+++ b/program/include/rcube_imap.php
@@ -3051,7 +3051,7 @@ class rcube_imap
{
$cache_key = 'mailboxes';
if (!empty($filter)) {
- $cache_key .= ':'.substr((is_string($filter) ? $filter : serialize($filter)), 0, 90);
+ $cache_key .= '.'.substr((is_string($filter) ? $filter : serialize($filter)), 0, 90);
}
// get cached folder list