Case T-738/17: Judgment of the General Court of 12 July 2019 — STIF-IDF v Commission (State aid — Aid scheme unlawfully implemented by France between 1994 and 2008 — Investment subsidies awarded by the STIF-IDF — Decision declaring the aid scheme compatible with the internal market — Advantage — Offsetting of costs involved in the discharging of public service obligations — Article 107(1), TFEU — Obligation to state reasons)