Substitutions not working in some places

Beta 17: “Options->Corrections->Substitutions->Replace double hyphens with em-dash” is not working in Document Titles, Synopsis, or Custom Metadata text. It works fine in Document text, Notes, and Comments. This behaviour seems to be similar to V1.9, with the exception that in V1.9, substitution does take place when typing in a title in the Binder, but not in V3.