Just FYI, this bug probably also breaks LibreOffice -- paths containing non-ASCII characters will not open. Switching locale to C.UTF-8 makes it work again.
Regards, Jan Kriho --- System information. --- Architecture: Kernel: Linux 4.9.0-1-amd64 Debian Release: 9.0 950 testing ftp.debian.org 900 unstable ftp.debian.org 850 experimental ftp.debian.org 800 stable security.debian.org 800 stable ftp.debian.org 800 stable dl.google.com 500 stable-updates ftp.debian.org --- Package information. --- Package's Depends field is empty. Package's Recommends field is empty. Package's Suggests field is empty.