To help in narrowing this down, I installed the version from the
experimental repo.
I got 2.99.16. This does not appear to show the bug, so I guess it's a
Debian packaging issue.
"This is an unstable development release commit d3c5536"
graeme@real:~/Documents/Remote/Bugs/Gimp/1040782$ apt-cache policy gimp
gimp:
Installed: 2.99.16-2
Candidate: 2.99.16-2
Version table:
*** 2.99.16-2 100
1 https://deb.debian.org/debian experimental/main amd64 Packages
100 /var/lib/dpkg/status
2.10.34-1 500
500 http://ftp.uk.debian.org/debian unstable/main amd64 Packages
