Redmine

Creating a new issue fails with a validation message "% done is not valid" when then field has been removed for the tracker.

Temporarely solved the problem by changing issue.rb:

  def clear_disabled_fields
    if tracker
      tracker.disabled_core_fields.each do |attribute|
        send "#{attribute}=", nil unless attribute == "done_ratio" 
      end
    end
  end

Environment:
  Redmine version                3.0.2.stable.14229
  Ruby version                   1.9.3-p484 (2013-11-22) [x86_64-linux]
  Rails version                  4.2.1
  Environment                    production
  Database adapter               Mysql2
SCM:
  Subversion                     1.8.8
  Git                            1.9.1
  Filesystem
Redmine plugins:
  no plugin installed