Redmine

When trying to upgrade to the last trunk db:migrate aborts with this message :

% rake db:migrate --trace
(in /home/nc/travail/rails/redmine)

• Invoke db:migrate (first_time)
• Invoke environment (first_time)
• Execute environment
• Execute db:migrate
  AddChangesetCommitDate: migrating ========================================
  -- add_column(:changesets, :commit_date, :date, {:null=>false})
  rake aborted!
  SQLite3::SQLException: Cannot add a NOT NULL column with default value NULL: ALTER TABLE changesets ADD
  "commit_date" date NOT NULL
  /usr/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/connection_adapters/abstract_adapter.rb:128:in `log'
  [...]

Two choices :
- allow NULL date
- set a default date