Slow-then-rapid quenching as traced by tentative evidence for enhanced metallicities of cluster galaxies at z ∼ 0.2 in the slow quenching phaseC. Maier, B. L. Ziegler, C. P. Haines and G. P. SmithA&A, 621 (2019) A131DOI: https://doi.org/10.1051/0004-6361/201834290