[TYPO3-Solr] [Typo3-Solr] deleteItem Problem

[Holger]

Hallo 

I am using class.tx_solr_indexqueue_queue.php in my extension. When I call updateItem, it just works as expected and adds Items to the indexQueue. And the new Item is indexed during the next run of the queue worker.

But when I call deleteItem, the Item is deleted in the indexQueue table, but it stays in the solr index.
I think there is something missing like 

http://localhost:8983/solr/update?stream.body=<delete><query>id:298253</query></delete>&commit=true

Am I doing something wrong or do I have to call another method or do I have to wait longer?
Thanks
Holger