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-rw-r--r--program/include/rcube_imap.php6
1 files changed, 4 insertions, 2 deletions
diff --git a/program/include/rcube_imap.php b/program/include/rcube_imap.php
index 6f3b40206..d6a549d10 100644
--- a/program/include/rcube_imap.php
+++ b/program/include/rcube_imap.php
@@ -1295,8 +1295,10 @@ class rcube_imap
$all_ids = array();
foreach($msg_index as $root) {
$all_ids[] = $root;
- if (!empty($thread_tree[$root]))
- $all_ids = array_merge($all_ids, array_keys_recursive($thread_tree[$root]));
+ if (!empty($thread_tree[$root])) {
+ foreach (array_keys_recursive($thread_tree[$root]) as $val)
+ $all_ids[] = $val;
+ }
}
return $all_ids;