1 files changed, 11 insertions, 1 deletions
diff --git a/rt/t/mail/mime_decoding.t b/rt/t/mail/mime_decoding.t
index 4b3e3c075..fbf884932 100644
--- a/rt/t/mail/mime_decoding.t
+++ b/rt/t/mail/mime_decoding.t
@@ -1,6 +1,6 @@
 use strict;
 use warnings;
-use RT::Test nodb => 1, tests => 13;
+use RT::Test nodb => 1, tests => 14;
 
 use_ok('RT::I18N');
 
@@ -34,6 +34,16 @@ diag q{'=' char in a trailing part after an encoded part};
     );
 }
 
+diag q{adding quotes around mime words containing specials when word is already quoted};
+{
+    my $str = <<"END";
+Content-Disposition: attachment; filename="=?iso-8859-1?Q?foobar,_?=
+ =?iso-8859-1?Q?barfoo.docx?="
+END
+    my $decoded = 'Content-Disposition: attachment; filename="foobar, barfoo.docx"';
+    is( RT::I18N::DecodeMIMEWordsToUTF8($str), $decoded, "No added quotes" );
+}
+
 diag q{regression test for #5248 from rt3.fsck.com};
 {
     my $str = qq{Subject: =?ISO-8859-1?Q?Re=3A_=5BXXXXXX=23269=5D_=5BComment=5D_Frag?=}