Ars article suggests this isn't the first time an errant hole has been punched in a Soyuz during manufacturing. https://arstechnica.com/science/2018/09/russian

Ars article suggests this isn't the first time an errant hole has been punched in a Soyuz during manufacturing. https://arstechnica.com/science/2018/09/russian-space-chief-vows-to-find-full-name-of-technician-who-caused-iss-leak/ https://arstechnica.com/science/2018/09/russian-space-chief-...