apt annoyance

[Tim Woodall <debiandevel@woodall.me.uk>]

When doing apt-get download -o RootDir=. apt
once it's downloaded the package it effectively tries to move it to
./$( pwd )/

(the prefix is whatever RootDir points to) instead of moving to
 $( pwd )/

This causes it to fail unless you do a
mkdir -p ./$( readlink -f $( pwd ) )

Is this a bug or a feature?

You also can get weird errors about cannot rename across filesystems
where RootDir is not on the same filesystem as $(pwd)