On Fri, 13 Jan 2017 18:48:13 +0100, Jürgen Spitzmüller wrote: > I think I have fixed this today. > Please try again with recent master (not features/biblatex2).
OK, thanks. This works now. Hope you don't mind if I report other findings here. Reporting on lyx.org bug tracker takes too much time: New document. Choose biblatex in Document Settings. Insert an option, Apply. Delete the option - it remains in the arguments to biblatex call, and it's back there when reopening the document.
