empty invalid fields to allow clone procedure

app/models/procedure.rb

@@ -576,8 +576,13 @@ class Procedure < ApplicationRecord
     procedure.service = nil
 
     transaction do
-      procedure.save
+      if !procedure.valid?
+        procedure.errors.attribute_names.each do |attribute|
+          procedure.send("#{attribute}=", nil)
+        end
+      end
 
+      procedure.save
       move_new_children_to_new_parent_coordinate(procedure.draft_revision)
     end
 

spec/controllers/administrateurs/procedures_controller_spec.rb

@@ -572,6 +572,38 @@ describe Administrateurs::ProceduresController, type: :controller do
         expect(flash[:notice]).to have_content 'Démarche clonée, pensez a vérifier la Présentation et choisir le service a laquelle cette procédure est associé.'
       end
     end
+
+    context 'when procedure has invalid fields' do
+      let(:admin_2) { create(:administrateur) }
+      let(:path) { 'spec/fixtures/files/invalid_file_format.json' }
+
+      before do
+        sign_out(admin.user)
+        sign_in(admin_2.user)
+
+        procedure.notice.attach(io: File.open(path),
+        filename: "invalid_file_format.json",
+        content_type: "application/json",
+        metadata: { virus_scan_result: ActiveStorage::VirusScanner::SAFE })
+
+        procedure.deliberation.attach(io: File.open(path),
+        filename: "invalid_file_format.json",
+        content_type: "application/json",
+        metadata: { virus_scan_result: ActiveStorage::VirusScanner::SAFE })
+
+        procedure.created_at = Date.new(2020, 2, 27)
+        procedure.save!
+
+        subject { put :clone, params: { procedure_id: procedure.id } }
+      end
+
+      it 'empty invalid fields and allow procedure to be cloned' do
+        expect(response).to redirect_to admin_procedure_path(id: Procedure.last.id)
+        expect(Procedure.last.notice.attached?).to be_falsey
+        expect(Procedure.last.deliberation.attached?).to be_falsey
+        expect(flash[:notice]).to have_content 'Démarche clonée, pensez a vérifier la Présentation et choisir le service a laquelle cette procédure est associé.'
+      end
+    end
   end
 
   describe 'PUT #archive' do