has_and_belongs_to_many SecondBase issue

gistfile1.rb

class Student < SecondBase::Base
  has_and_belongs_to_many :courses
end

class Course < SecondBase::Base
  has_and_belongs_to_many :students
end


student = Student.first
course = Course.first

# This generate an insert statement (into student_courses_students) using 
# ActiveRecord::Base.connection, and not SecondBase::Base.connection
student.courses << course