0.9.8 crashes on edge rails

[dbackeus]

.../bundler-0.9.8/lib/bundler/rubygems_ext.rb:20:in alias_method': undefined methoddependencies' for class `Gem::Specification' (NameError)

Using latest rails3 from master, rvm with ruby 1.9.1, rubygems 1.3.6 (also tried with 1.3.5 with same crash).

Crash happened when running script/rails console. More specifically at "require 'bundler'" in boot.rb.

Downgrading to 0.9.7 makes everything fine again.