Index: /trunk/roundcubemail/program/steps/mail/func.inc
===================================================================
--- /trunk/roundcubemail/program/steps/mail/func.inc	(revision 3989)
+++ /trunk/roundcubemail/program/steps/mail/func.inc	(revision 3990)
@@ -845,5 +845,5 @@
 
   // quote plain text
-  $body = Q(join("\n", $a_lines), '', false);
+  $body = Q(join("\n", $a_lines), 'dummy', false);
 
   // colorize signature