TAdvFileNameEdit dialogoptions

In the DialogOptions of TAdvFileNameEdit the enabling (or disabling) of ofNoChangeDir has no affect to the dialog execution ?!
Best regards

ofNoChangeDir maps to this property of a TOpenDialog for which the Delphi help explains:

ofNoChangeDir : After the user clicks OK, resets the current directory to whatever it was before the file-selection dialog opened. 

Is there any way to prevent the user navigating away from the initial directory with this component?

Sorry, there is no such setting and afaik it is also not exposed from the underlying VCL TOpenDialog.