diff --git a/app/models/formations.py b/app/models/formations.py
index f1947f73..36e35647 100644
--- a/app/models/formations.py
+++ b/app/models/formations.py
@@ -67,7 +67,6 @@ class Formation(db.Model):
         """
         e = dict(self.__dict__)
         e.pop("_sa_instance_state", None)
-        e.pop("referentiel_competence_id")
         if "referentiel_competence" in e:
             e.pop("referentiel_competence")
         e["departement"] = self.departement.to_dict()
diff --git a/sco_version.py b/sco_version.py
index 48027b23..5a42b639 100644
--- a/sco_version.py
+++ b/sco_version.py
@@ -1,7 +1,7 @@
 # -*- mode: python -*-
 # -*- coding: utf-8 -*-
 
-SCOVERSION = "9.4.18"
+SCOVERSION = "9.4.19"
 
 SCONAME = "ScoDoc"
 
diff --git a/tests/api/test_api_absences.py b/tests/api/test_api_absences.py
index c57b3c1e..d64a7002 100644
--- a/tests/api/test_api_absences.py
+++ b/tests/api/test_api_absences.py
@@ -129,11 +129,8 @@ def test_abs_groupe_etat(api_headers):
 
             assert abs["begin"] < abs["end"]
 
-    all_unique = True
-    for id in list_id_etu:
-        if list_id_etu.count(id) > 1:
-            all_unique = False
-    assert all_unique is True
+    # vérifie que chaque étudiant n'apparait qu'une seule fois
+    assert len(set(list_id_etu)) == len(list_id_etu)
 
     date_debut = "Fri, 15 Apr 2021 00:00:00 GMT"
     date_fin = "Fri, 18 Apr 2022 00:00:00 GMT"
diff --git a/tools/fakedatabase/create_test_api_database.py b/tools/fakedatabase/create_test_api_database.py
index 996007c8..f62f4f72 100644
--- a/tools/fakedatabase/create_test_api_database.py
+++ b/tools/fakedatabase/create_test_api_database.py
@@ -164,12 +164,9 @@ def create_fake_etud(dept: Departement) -> Identite:
     etud.code_nip = f"{etud.id}" if (etud.id % 2) else f"NIP{etud.id}"
     etud.code_ine = f"INE{etud.id}" if (etud.id % 2) else f"{etud.id}"
     etud.date_naissance = datetime.date(2005, 2, 1) + datetime.timedelta(days=etud.id)
+    etud.adresse = [models.Adresse(email=f"{etud.prenom}.{etud.nom}@example.com")]
     db.session.add(etud)
     db.session.commit()
-    adresse = models.Adresse(
-        etudid=etud.id, email=f"{etud.prenom}.{etud.nom}@example.com"
-    )
-    db.session.add(adresse)
     admission = models.Admission(etudid=etud.id)
     db.session.add(admission)
     db.session.commit()