Comment 7 for bug 1658707

@Patrick: I was asking Timofey, who reports being affected by this bug with apt-transport-https 1.3.4 on Yakkety. That shouldn't be the case, and any error that makes it look like it is can be solved away by removing the partially-downloaded fonts in /var/lib/update-notifier/package-data-downloads/partial/ and reinstalling ttf-mscorefonts-installer after updating apt-transport-https to 1.3.4 (Yakkety) or 1.2.19 (Xenial). Cf. bug 1607535's description, section [Fix].