Case T-331/17: Judgment of the General Court of 12 July 2019 — Steifer v EESC (Civil service — Officials — Pensions — Pension entitlement acquired before entry into service of the EU — Transfer to the EU scheme — Grant of additional seniority — Reimbursement of the amount of pension entitlement not taken into account in the scheme for the calculation of annuities of pension of the EU — No new and substantial facts — No excusable error — Liability — Inadmissibility)