FIX: exclude conditional fields while saving step submission

controllers/custom_wizard/steps.rb

@@ -28,7 +28,7 @@ class CustomWizard::StepsController < ::ApplicationController
       current_step = @wizard.find_step(update[:step_id])
       current_submission = @wizard.current_submission
       result = {}
-
+      @wizard.filter_conditional_fields
       if current_step.conditional_final_step && !current_step.last_step
         current_step.force_final = true
       end

lib/custom_wizard/wizard.rb

@@ -243,19 +243,20 @@ class CustomWizard::Wizard
     return nil unless save_submissions
 
     submissions.pop(1) if unfinished?
-    submission = filter_conditional_fields(submission)
     submissions.push(submission)
     set_submissions(submissions)
   end
 
-  def filter_conditional_fields(submission)
+  def filter_conditional_fields
     included_fields = steps.map { |s| s.fields.map { |f| f.id } }.flatten
-    submission.select do |key, _|
+    filtered_submision = current_submission&.select do |key, _|
       key = key.to_s
       included_fields.include?(key) ||
       required_fields.include?(key) ||
       key.include?("action")
     end
+
+    save_submission(filtered_submision)
   end
 
   def required_fields

spec/requests/custom_wizard/steps_controller_spec.rb

@@ -272,16 +272,8 @@ describe CustomWizard::StepsController do
         step_1_field_1: "Condition will not pass"
       }
     }
-    wizard_id = response.parsed_body['wizard']['id']
-    wizard = CustomWizard::Wizard.create(wizard_id, user)
-    submission = wizard.submissions.last
-    expect(submission.keys).to include("step_2_field_1")
 
-    put '/w/super-mega-fun-wizard/steps/step_2.json', params: {
-      fields: {
-        step_2_field_1: "1995-04-23"
-      }
-    }
+    wizard_id = response.parsed_body['wizard']['id']
     wizard = CustomWizard::Wizard.create(wizard_id, user)
     submission = wizard.submissions.last
     expect(submission.keys).not_to include("step_2_field_1")