[COREblog-en] sort order changes when published entry is changed

[Jens Nachtigall]

Hi all,

when I edit a published entry it moves up in the coreblog view. So obviously, 
an edit of a published entry seems to set the 'Date' index in the catalog (I 
looked at coreblog2 code, and the sort_order is determined by the 'Date' 
index). Is this normal plone behaviour or related to coreblog2? Where can I 
change this behaviour?

I use plone2.1.2 and the latest coreblog2.

Thanks in advance,

Jens