APT::Default-Release doesn't seem to affect upgrades
I have a testing system (with a few items built from unstable
sources), and just added unstable to my apt sources.list. As
recommended in the HOWTO, I put
APT::Default-Release "testing";
in apt.conf. I do not have an apt/preferences file.
When I tried apt-get upgrade (or dist-upgrade) it wanted to upgrade a
bunch of packages, all from unstable. I tried commenting out unstable
from my sources.list, and apt-get upgrade becomes a no-op.
I expected apt would not use unstable unless I explicitly told it to.
What am I missing?
Many of the packages to be upgraded were from mozilla, which is
something I did build from source. So I could sort of see this
drawing from unstable, even if I don't understand why. But others are
definitely not like that, e..g, gnome-pim, install-doc, openuniverse.
As a side mystery,
# apt-show-versions -a gnome-pin
Not installed
No stable version
No testing version
No unstable version
gnome-pin not installed: No available versions
But it is installed.
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