Redmine

Good day!
I am from task http://www.redmine.org/issues/20311

I apply r14315 (http://www.redmine.org/projects/redmine/repository/revisions/14315).
But it doesn't work. Now i receive styles in my tasks.

For example:

P {margin-top:0;margin-bottom:0;}

test

If I send my message from Microsoft Outlook, i receive that:

[if !mso]>
<style>
v\:* {behavior:url(#default#VML);}
o\:* {behavior:url(#default#VML);}
w\:* {behavior:url(#default#VML);}
.shape {behavior:url(#default#VML);}
</style>
<![endif]
<!--
/* Font Definitions /
@font-face {font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face {font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
@font-face {font-family:Tahoma;
panose-1:2 11 6 4 3 5 4 4 2 4;}
/ Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal {margin:0cm;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri","sans-serif";}
a:link, span.MsoHyperlink {mso-style-priority:99;
color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed {mso-style-priority:99;
color:purple;
text-decoration:underline;}
p.MsoAcetate, li.MsoAcetate, div.MsoAcetate {mso-style-priority:99;
mso-style-link:"Текст выноски Знак";
margin:0cm;
margin-bottom:.0001pt;
font-size:8.0pt;
font-family:"Tahoma","sans-serif";}
span.a {mso-style-name:"Текст выноски Знак";
mso-style-priority:99;
mso-style-link:"Текст выноски";
font-family:"Tahoma","sans-serif";}
span.EmailStyle19 {mso-style-type:personal;
font-family:"Calibri","sans-serif";
color:windowtext;}
span.EmailStyle20 {mso-style-type:personal;
font-family:"Calibri","sans-serif";
color:#1F497D;}
span.EmailStyle21 {mso-style-type:personal-reply;
font-family:"Calibri","sans-serif";
color:#1F497D;}
.MsoChpDefault {mso-style-type:export-only;
font-size:10.0pt;}
@page Section1 {size:612.0pt 792.0pt;
margin:2.0cm 42.5pt 2.0cm 3.0cm;}
div.Section1 {page:Section1;}
-->
[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif][if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]

test