From b2dc6275eb4eeb8ef809765ee30257af968d8b02 Mon Sep 17 00:00:00 2001
From: Jonathan Druart <jonathan.druart@bugs.koha-community.org>
Date: Wed, 11 Apr 2018 15:55:04 -0300
Subject: [PATCH] Bug 17981: Do not crash if the template is already using TT
 syntax

Signed-off-by: Josef Moravec <josef.moravec@gmail.com>
---
 svc/letters/preview | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/svc/letters/preview b/svc/letters/preview
index 809ee72..2d0c73f 100644
--- a/svc/letters/preview
+++ b/svc/letters/preview
@@ -233,9 +233,9 @@ if ( %$letter_params ) {
             letter => $fake_tt_letter,
             %$letter_params,
         );
+        $messages_are_similar =
+          $rendered_message->{content} eq $rendered_tt_message->{content};
     }
-    $messages_are_similar =
-      $rendered_message->{content} eq $rendered_tt_message->{content};
 }
 
 $template->param(
-- 
2.1.4