Corrigendum: Étale cohomology, purity and formality with torsion coefficients

Abstract

Proposition 6.9 in (J. Topol. 15 (2022), no. 4, 2270–2297) is incorrect without a connectivity assumption. In this note, we provide a counter-example, give a correct proof of the modified proposition and explain the other changes that need to be made to [1].