The current version is writing the output into the working directory and changes the extension.
This behavior is different to what 2.0 did before.
On top of that, if input and output file are the same by that logic the output gets changed to _fcexport.xml.
I'm not clear on all the cases, but it's confusing ;-)
I need a stable way to get the output filename. Ideally with my prefered target name.