rails3, rvm, ruby1.9.2: "bundle install" suddenly installs into Rails.root???

Hi,

Does anyone know what could have caused bundler to try to install gems
not into the ~/.rvm directory? I did not change anything compared to
yesterday where I did the same thing. Yes, I updated bundler today and
also rvm, but I reverted back to 0.9.14 and also reverted rvm to an
earlier version, no change.

Anyone?

That was quick: solved by

rm -rf ~/.bundle/ ~/.gem/ .bundle/ Gemfile.lock

as described in the bundler README