Do not reset messages count in set_folder()

program/lib/Roundcube/rcube_imap.php

@@ -308,14 +308,7 @@ class rcube_imap extends rcube_storage
      */
     public function set_folder($folder)
     {
-        if ($this->folder == $folder) {
-            return;
-        }
-
         $this->folder = $folder;
-
-        // clear messagecount cache for this folder
-        $this->clear_messagecount($folder);
     }
 
 

program/steps/mail/check_recent.inc

@@ -81,9 +81,10 @@ foreach ($a_mailboxes as $mbox_name) {
         if (empty($_GET['_list']))
             continue;
 
-        // get overall message count; allow caching because rcube_storage::folder_status() did a refresh
+        // get overall message count; allow caching because rcube_storage::folder_status()
+        // did a refresh but only in list mode
         $list_mode = $RCMAIL->storage->get_threading() ? 'THREADS' : 'ALL';
-        $all_count = $RCMAIL->storage->count($mbox_name, $list_mode, false, false);
+        $all_count = $RCMAIL->storage->count($mbox_name, $list_mode, $list_mode == 'THREADS', false);
         $page      = $RCMAIL->storage->get_page();
         $page_size = $RCMAIL->storage->get_pagesize();