Created attachment 143552 [details]
Screenshot of the Problem

I implemented language support for the property list ascii format and while doing so, I also implemented a structure scanner.

While the navigator window works, I also noticed, that my configuration (enabled sorting, disabled filtering) was ignored):

public class PListStructureScanner implements StructureScanner {
[...]
    @Override
    public Configuration getConfiguration() {
        return new Configuration(true, false);
    }
[...]
}

I had a look at the CSL Sourcecode and the problem lies in the fact, whether the filter menu and actions are created is dermined in the constructor, which is invoked with null as language and this leads to the default creation with the filter panel and actions.

I moved that functionality out of the constructor (for compatibility reasons it is still called there) and added it to the case when the navigator is refreshed for a exchanged fileObject.