Request parameters retrieved from a form sent with multipart/form-data encoding (for file uploads) have the wrong encoding

{{html}}
<form method="post" action="" enctype="multipart/form-data">
<div>
<input type="text" name="a" value="chèrie" />
<input type="submit" />
</div>
</form>
{{/html}}

{{velocity}}
$!request.a
{{/velocity}}