Automatic detection of server ports cannot handle changing configuration from default

I create a new server for JBoss AS 6.0.
I select the "default" configuration in the "New server" dialog.
JNDI port is detected as 1099 as it should be.
Now i open the "Edit server runtime environment" dialog and change from "default" to "all" configuration.
I have edited the conf/bindingservice.beans\META-INF\bindings-jboss-beans.xml file to use JNDI port 11099 instead of 1099 for the "all" configuration.

Now the autodetected JNDI port is still 1099?
If i click the "Configure..." next to the auto detect checkbox and then "Edit XPath" i see that the root directory is still pointing to the default configuration.
If i click the browse button and try to change the root directory it does not take the change. It still points to the default directory the next time i open the "Edit XPath" dialog.