Order Column collides with Rails 6 - wrong number of arguments (given 0, expected 1)

[silvermind]

using @model.children results in
wrong number of arguments (given 0, expected 1)

Rails 6.0.0.rc1 seam to have its own order_column Method, see this commit: rails/rails@cb0299c

not sure if it's directly related to this Rails 6 Feature
https://blog.bigbinary.com/2019/04/16/rails-6-adds-implicit_order_column.html