dpkg: update-alternatives madness

[Ian Jackson <ian@davenant.greenend.org.uk>]

reassign 37254 debian-policy, dpkg
severity 37254 normal
quit

I agree that update-alternatives shouldn't put an alternative into
manual mode because a _target_ disappeared unexpectedly.  I'll look
into this eventually.

But, the problem doesn't happen if you call update-alternatives in the
prerm, which is where you should.  So it would be good if the policy
manual could be changed to this effect.

Therefore, I've reassigned this bug to "debian-policy, dpkg".  When
the policy is changed, please assign it back to dpkg.

Thanks,
Ian.