Removing columns breaks older logs

[Frexuz]

Possibly related to #59
We have this migration:

class ChangeIsAgentToAccountType < ActiveRecord::Migration[5.2]
  def up
    add_column :users, :account_type, :integer, default: 0, null: false

    User.all.each do |user|
      user.update(account_type: user.is_agent ? User.account_types[:agent] : User.account_types[:user])
    end

    remove_column :users, :is_agent
  end

  def down
    add_column :users, :is_agent, :boolean, default: false, null: false

    User.all.each do |user|
      user.update(is_agent: user.account_type_agent? ? true : false)
    end

    remove_column :users, :account_type
  end
end

so, is_agent column is now gone, but it is still in the log data.

In our admin, we print all changes for a specific record:

panel 'Version history' do
  versions = []
  log_size = resource.log_size
  (1..log_size).each do |version|
    #versions << resource.at(version: version)
  end
  table_for versions.reverse! do
    column('Version', &:log_version)
    column('Change') { |resource| log_data_change(resource) }
    column('Actions') { |resource| link_to 'Restore', "#{resource.id}/restore?log_version=#{resource.log_version}", method: :put, data: { confirm: t('are_you_sure') } }
  end
end

Error: can't write unknown attribute is_agentAt:resource.at(version: version)`

Stacktrace:

activemodel (5.2.0) lib/active_model/attribute.rb:207:in `with_value_from_database'
activemodel (5.2.0) lib/active_model/attribute_set.rb:57:in `write_from_user'
activerecord (5.2.0) lib/active_record/attribute_methods/write.rb:51:in `_write_attribute'
activerecord (5.2.0) lib/active_record/attribute_methods/write.rb:45:in `write_attribute'
logidze (0.6.3) lib/logidze/model.rb:206:in `apply_column_diff'
logidze (0.6.3) lib/logidze/model.rb:198:in `block in apply_diff'
logidze (0.6.3) lib/logidze/model.rb:197:in `each'
logidze (0.6.3) lib/logidze/model.rb:197:in `apply_diff'
logidze (0.6.3) lib/logidze/model.rb:211:in `build_dup'
logidze (0.6.3) lib/logidze/model.rb:112:in `at_version'
logidze (0.6.3) lib/logidze/model.rb:70:in `at'

Seems like it could be fixed by the gem. Is there any temporary fix we could do?

UPDATE:
Temporary fix: resource.log_data.data['h'].map{|l| l['c'].delete('is_agent') }

[palkan]

Fixed by #71 and released as 0.6.4

[Frexuz]

So fast! :D <3