I am writing to inquire about the seat reservation rules and validity of the Eurail France One Country Pass for cross-border TGV Lyria routes.
Specifically, I am planning to travel from Basel (Basel SBB / Bâle SNCF) to Paris (Paris Gare de Lyon) on a direct TGV Lyria train. I checked the Rail Planner App, which indicates that the France One Country Pass is valid and supports seat reservations for the TGV Lyria segment from Basel to Mulhouse. Since the direct train from Basel to Paris travels through Mulhouse anyway, does this mean the pass fully covers the entire direct journey to Paris?
Furthermore, I would like to know if this same logic applies to the TGV Lyria route between Paris and Geneva. As Geneva is also a border station, can I use the France One Country Pass to book a direct train (TGV Lyria) from Paris to Geneva?
Thank you for your time and clarification.

