Update with XMLRPC

Hi, I was testing the exchange of data with Xwiki using XMLRPC and I had a strange behaviour. When trying to update a page by adding some content, I had to relogging to view the change, this normal I think. But when I remove the content of the page and I put a new one, I have to reboot my Web Server. It's a strange behaviour for me. So is the problem coming from me ( environment: Apache Tomcat, database Mysql, Xwiki 1.0 ) or is this the normal behaviour? If you have any idea, thank you for your suggestion. Bye