Can't pass an empty hash as callback parameters to transition_from since 5.5.0

[y-yagi]

Describe the bug

Can't pass an empty hash as callback parameters to transition_from since 5.5.0

To Reproduce

Reproduce script is here.

# frozen_string_literal: true
# bug_report_aasm.rb 

require "bundler/inline"

gemfile(true) do
  source "https://rubygems.org"

  gem "aasm", "5.5.0"
  gem "rspec"
end

class Job
  include AASM

  aasm do
    state :sleeping, initial: true
    state :running, :cleaning

    event :run do
      transitions from: :sleeping, to: :running, after: :prepare_run!
    end

    event :clean do
      transitions from: :running, to: :cleaning
    end
  end

  def prepare_run!(params)
    puts params
  end
end

require "aasm/rspec"
require "rspec/autorun"

RSpec.describe Job do
  it "move to 'run' with parameters" do
    job = Job.new
    expect(job).to transition_from(:sleeping).to(:running).on_event(:run, {})
  end
end

$ ruby bug_report_aasm.rb   
F

Failures:

  1) Job move to 'run' with parameters
     Failure/Error:
       def prepare_run!(params)
         puts params
       end

     ArgumentError:
       wrong number of arguments (given 0, expected 1)
     # bug_report_aasm.rb:28:in `prepare_run!'
     # bug_report_aasm.rb:39:in `block (2 levels) in <main>'

Finished in 0.00177 seconds (files took 0.05501 seconds to load)
1 example, 1 failure

Failed examples:

rspec bug_report_aasm.rb:37 # Job move to 'run' with parameters

Expected behavior

Allow to pass an empty hash as callback parameters via transition_from

Additional context

This has happened since #808.

[ccartano]

Would this be caused because in your event transition definition

transitions from: :sleeping, to: :running, after: :prepare_run!

the after: :prepare_run! isnt passing anything. You'd have to do something like after: proc { prepare_run!({thing: other})
or you could default the def prepare_run!(params = {})

[y-yagi]

@ccartano
This works until v5.4.0 and I've already sent the PR to fix this bug #833.