[Zope] Missing content_type

[Ingo Assenmacher]

Hi All.

I am uploading files not using the management-interface but extra
defined forms.
<form action="upload" enctype="multipart/form-data" method=post>
[bla bla]
</form>

Ok. Then I call the "object_add(_.None,_, NoRedir=1)" method which adds
the object.
a) I have to call "manage_editProperties(REQUEST)" in order to set the
title-property
b) after I do this, the "content_type" property is empty.

How is this?

I am using Zope2.1.2, Linux/intel and Win32

Thanks for your help,

regards Ingo.