When updating my events with a new category, and save to google calendar, the category is gone

[Frank Michael]

However I am able to create one and save with category, then it
works.

And SOMETIMES, when I update it with category, it works as well. But
SOMETIMES not.

Here is an example, where the category is there:

Parsing entry:
<entry xmlns:openSearch="http://a9.com/-/spec/opensearchrss/1.0/"
xmlns:gCal="http://schemas.google.com/gCal/2005" xmlns:gd="http://
schemas.google.com/g/2005" xmlns:gml="http://www.opengis.net/gml"
xmlns:georss="http://www.georss.org/georss" xmlns="http://www.w3.org/
2005/Atom">
<id>http://www.google.com/calendar/feeds/frankmichaelkraft
%40gmail.com/private/full/lep64foorftbqnvhd9mq8eija0</id>
<published>2009-10-29T10:57:32.000+01:00</published>
<updated>2009-11-13T15:52:06.000+01:00</updated>
<category scheme="http://schemas.google.com/g/2005#kind"
term="http://schemas.google.com/g/2005#event"/>
<title type="text">Retrieve Notes with retrieve of Business Object
Node</title>
<content type="text"/>
<link rel="alternate" type="text/html" href="http://www.google.com/
calendar/event?
eid=bGVwNjRmb29yZnRicW52aGQ5bXE4ZWlqYTAgZnJhbmttaWNoYWVsa3JhZnRAbQ"
title="alternate"/>
<link rel="self" type="application/atom+xml" href="http://
www.google.com/calendar/feeds/frankmichaelkraft%40gmail.com/private/full/lep64foorftbqnvhd9mq8eija0"/>
<link rel="edit" type="application/atom+xml" href="http://
www.google.com/calendar/feeds/frankmichaelkraft%40gmail.com/private/full/lep64foorftbqnvhd9mq8eija0/63393807126"/>
<author>
<name>Frank Michael Kraft</name>
<email>frank.mic...@gmx.de</email>
</author>
<gd:comments>
<gd:feedLink href="http://www.google.com/calendar/feeds/
frankmichaelkraft%40gmail.com/private/full/lep64foorftbqnvhd9mq8eija0/
comments"/>
</gd:comments>
<gd:eventStatus value="http://schemas.google.com/g/
2005#event.confirmed"/>
<gd:where valueString=""/>
<gd:who email="frank.mic...@gmx.de" rel="http://
schemas.google.com/g/2005#event.organizer" valueString="Frank Michael
Kraft"/>
<gd:when endTime="2009-10-29T13:00:00.000+01:00"
startTime="2009-10-29T11:00:00.000+01:00">
<gd:reminder method="alert" minutes="10"/>
</gd:when>
<gd:transparency value="http://schemas.google.com/g/
2005#event.opaque"/>
<gd:visibility value="http://schemas.google.com/g/
2005#event.default"/>
<gCal:anyoneCanAddSelf value="false"/>
<gd:extendedProperty name="X-MOZ-CATEGORIES" value="Erledigt"/>
<gd:extendedProperty name="X-MOZ-LASTACK"
value="2009-11-13T14:51:08Z"/>
<gCal:guestsCanInviteOthers value="true"/>
<gCal:guestsCanModify value="false"/>
<gCal:guestsCanSeeGuests value="true"/>
<gCal:sequence value="0"/>
<gCal:uid value="lep64foorftbq...@google.com"/>
</entry>

Here is an example, where the category is missing:

action: Setting Upload Data:
content: application/atom+xml; charset=UTF-8
data: <entry xmlns:gd="http://schemas.google.com/g/2005"
xmlns:gCal="http://schemas.google.com/gCal/2005" xmlns="http://
www.w3.org/2005/Atom">
<category scheme="http://schemas.google.com/g/2005#kind"
term="http://schemas.google.com/g/2005#event"/>
<title type="text">Nacharbeit Scan</title>
<content type="text"/>
<author>
<name>Frank Michael Kraft</name>
<email>frankmic...@gmail.com</email>
</author>
<gd:transparency value="http://schemas.google.com/g/
2005#event.opaque"/>
<gd:eventStatus value="http://schemas.google.com/g/
2005#event.confirmed"/>
<gd:where valueString=""/>
<gd:who email="frank.mic...@gmx.de" rel="http://
schemas.google.com/g/2005#event.organizer" valueString="Frank Michael
Kraft"/>
<gCal:sendEventNotifications value="true"/>
<gd:when startTime="2009-11-23T20:30:00+01:00"
endTime="2009-11-23T21:30:00+01:00"/>
<gd:visibility value="http://schemas.google.com/g/
2005#event.default"/>
<gCal:sequence value="1"/>
<gCal:uid value="khkb0mv6th6b859p2nbo7jg14c"/>
</entry>
End object

So here this line is missing:

<gd:extendedProperty name="X-MOZ-CATEGORIES" value="Erledigt"/>

Why?

More information:

http://www.sunbird-kalender.de/forum/viewtopic.php?f=5&t=2856&p=12632#p12632