Hiho,

while I was working on an update for debian-games, I discovered that
blend-gen-control would not update the apt sources.list and quit with
an error.

E: Repository 'http://ftp.debian.org/debian testing InRelease' changed its 'Codename' value from 'stretch' to 'buster'
N: This must be accepted explicitly before updates for this repository can be applied. See apt-secure(8) manpage for details.

When I run make dist and try to release for unstable, the testing
repository will be updated and I will get a list with packages that
are listed in my task files but are not currently present in testing.
I had to change line 145 from

 my $aptget   = "apt-get --assume-yes -o " . join(" -o ", @aptopts);

 to

 my $aptget   = "apt-get --allow-releaseinfo-change --assume-yes -o " . join(" -o ", @aptopts);

to work around this issue.

Regards,

Markus