Fix bug where "With attachment" option in search filter wasn't selected after return from mail view (#1489774)

CHANGELOG

@@ -6,6 +6,7 @@ CHANGELOG Roundcube Webmail
 - Set In-Reply-To and References for forwarded messages (#1489593)
 - Removed redundant default_folders config option (#1489737)
 - Implemented IMAP SPECIAL-USE extension support [RFC6154] (#1487830)
+- Fix bug where "With attachment" option in search filter wasn't selected after return from mail view (#1489774)
 
 RELEASE 1.0.0
 -------------

program/steps/mail/func.inc

@@ -2036,7 +2036,7 @@ function rcmail_search_filter($attrib)
     $ctypes = array('application/', 'multipart/m', 'multipart/signed', 'multipart/report');
 
     // Build search string of "with attachment" filter
-    $attachment = str_repeat(' OR', count($ctypes)-1);
+    $attachment = trim(str_repeat(' OR', count($ctypes)-1));
     foreach ($ctypes as $type) {
         $attachment .= ' HEADER Content-Type ' . rcube_imap_generic::escape($type);
     }