- Fix imap_cache setting to values other than 'db' (#1488060)

CHANGELOG

@@ -1,6 +1,7 @@
 CHANGELOG Roundcube Webmail
 ===========================
 
+- Fix imap_cache setting to values other than 'db' (#1488060)
 - Fix handling of attachments inside message/rfc822 parts (#1488026)
 - Make list of mimetypes that open in preview window configurable (#1487625)
 - Added plugin hook 'message_part_get' for attachment downloads

program/include/rcube_imap.php

@@ -3837,13 +3837,13 @@ class rcube_imap
     /**
      * Enable or disable indexes caching
      *
-     * @param boolean $type Cache type (@see rcmail::get_cache)
+     * @param string $type Cache type (@see rcmail::get_cache)
      * @access public
      */
     function set_caching($type)
     {
         if ($type) {
-            $this->caching = true;
+            $this->caching = $type;
         }
         else {
             if ($this->cache)
@@ -3860,7 +3860,7 @@ class rcube_imap
     {
         if ($this->caching && !$this->cache) {
             $rcmail = rcmail::get_instance();
-            $this->cache = $rcmail->get_cache('IMAP', $type);
+            $this->cache = $rcmail->get_cache('IMAP', $this->caching);
         }
 
         return $this->cache;