Dossier on discarded procedure should have access to discarded procedure

app/models/groupe_instructeur.rb

@@ -1,6 +1,6 @@
 class GroupeInstructeur < ApplicationRecord
   DEFAULT_LABEL = 'défaut'
-  belongs_to :procedure
+  belongs_to :procedure, -> { with_discarded }, inverse_of: :groupe_instructeurs
   has_many :assign_tos
   has_many :instructeurs, through: :assign_tos, dependent: :destroy
   has_many :dossiers

spec/models/dossier_spec.rb

@@ -1250,4 +1250,14 @@ describe Dossier do
     it { expect(Dossier.discarded_brouillon_expired.count).to eq(2) }
     it { expect(Dossier.discarded_en_construction_expired.count).to eq(2) }
   end
+
+  describe "discarded procedure dossier should be able to access it's procedure" do
+    let(:dossier) { create(:dossier) }
+    let(:procedure) { dossier.reload.procedure }
+
+    before { dossier.procedure.discard! }
+
+    it { expect(procedure).not_to be_nil }
+    it { expect(procedure.discarded?).to be_truthy }
+  end
 end