Wikimedia Bugzilla is closed!

If I activate the media wiki extension FCKeditor the graphs (rendered by Graphviz) are corrupted. Example

1. Edit a page
2. Change editor from FCKeditor to WikiTextEditor
3. Input the following text and save the page 

 -------------
 <graphviz border='frame' format='png'>
 digraph example1 {Hello->World!}
 </graphviz>
 -------------

4. Page shows a picture of the above described graph.
5. Edit the page
6. The FCKeditor shows only the picture of the graph.
7. Changing editor from FCKeditor to WikiTextEditor corrupts the graph source to this 

 -------------
 <map name="ReleasePlanning---digraph+example1"></map>

 [[File:|This is a graph with borders and nodes. Maybe there is an Imagemap used so the nodes may be linking to some Pages.]]
 -------------

8. When changing the editor back to FCKeditor the picture is no longer displayed. It just shows the above text.
9. Changing to WikiTextEditor again further corrupts the graph source to 

 -------------
 &lt;map name="ReleasePlanning---digraph+example1"&gt;&lt;/map&gt;

 &#x5B;&#x5B;File:|This is a graph with borders and nodes. Maybe there is an Imagemap used so the nodes may be linking to some Pages.&#x5D;&#x5D;
 -------------

Because the CFEditor is started by default I'm unable to edit pages containing graphviz graphs, without loosing the graphs..