Case T-547/18: Judgment of the General Court of 26 March 2020 –Teeäär v ECB (Civil service — ECB staff — Programme of support for transition to a career outside the ECB — Rejection of an application to take part in that programme — Eligibility conditions — Different lengths of service required depending on whether a staff member is in a single salary band or a salary broadband — Allocation to a salary band on the basis of the type of employment — Equal treatment — Proportionality — Manifest error of assessment)