[BUG] ActiveRecord::normalizes can break `cont` predicate

test.rb

# test-ransack-scope-and-column-same-name.rb

# This is a stand-alone test case.

# Run it in your console with: `ruby test-ransack-scope-and-column-same-name.rb`

# If you change the gem dependencies, run it with:
# `rm gemfile* && ruby test-ransack-scope-and-column-same-name.rb`

unless File.exist?('Gemfile')
  File.write('Gemfile', <<-GEMFILE)
    source 'https://rubygems.org'

    # Rails last release
    gem 'rails'

    gem 'sqlite3'
    gem 'ransack', github: 'activerecord-hackery/ransack'
  GEMFILE

  system 'bundle install'
end

require 'bundler'
Bundler.setup(:default)

require 'active_record'
require 'minitest/autorun'
require 'logger'
require 'ransack'

# This connection will do for database-independent bug reports.
ActiveRecord::Base.establish_connection(adapter: 'sqlite3', database: ':memory:')
ActiveRecord::Base.logger = Logger.new(STDOUT)

# Display versions.
message = "Running test case with Ruby #{RUBY_VERSION}, Active Record #{
  ::ActiveRecord::VERSION::STRING}, Arel #{Arel::VERSION} and #{
  ::ActiveRecord::Base.connection.adapter_name}"
line = '=' * message.length
puts line, message, line

ActiveRecord::Schema.define do
  create_table :users, force: true do |t|
    t.string :name, null: false
  end
end

class User < ActiveRecord::Base
  normalizes :name, with: ->(name) { name.gsub(/[^a-z0-9]/, '_') }

  def self.ransackable_attributes(auth_object = nil)
    %w[name]
  end
end

class BugTest < Minitest::Test
  def test_normalized_attribute_using_ransack_with_cont
    sql = User.ransack({ name_cont: 'foo' }).result.to_sql
    assert_includes(sql, "LIKE '%foo%'")
  end
end