diff --git a/app/api/etudiants.py b/app/api/etudiants.py
index 0da5f60f..80b7eff0 100644
--- a/app/api/etudiants.py
+++ b/app/api/etudiants.py
@@ -286,9 +286,7 @@ def etudiant_formsemestres(etudid: int = None, nip: int = None, ine: int = None)
 
     formsemestres = query.order_by(FormSemestre.date_debut)
 
-    return jsonify(
-        [formsemestre.to_dict(convert_objects=True) for formsemestre in formsemestres]
-    )
+    return jsonify([formsemestre.to_dict_api() for formsemestre in formsemestres])
 
 
 @bp.route(
diff --git a/app/api/partitions.py b/app/api/partitions.py
index 6b366ec5..1f7280ca 100644
--- a/app/api/partitions.py
+++ b/app/api/partitions.py
@@ -165,9 +165,7 @@ def set_etud_group(etudid: int, group_id: int):
     query = GroupDescr.query.filter_by(id=group_id)
     if g.scodoc_dept:
         query = (
-            query.join(Partition)
-            .join(FormSemestre)
-            .filter_by(dept_id=group.scodoc_dept_id)
+            query.join(Partition).join(FormSemestre).filter_by(dept_id=g.scodoc_dept_id)
         )
     group = query.first_or_404()
     if etud.id not in {e.id for e in group.partition.formsemestre.etuds}:
@@ -178,11 +176,11 @@ def set_etud_group(etudid: int, group_id: int):
         .filter_by(etudid=etudid)
     )
     ok = False
-    for group in groups:
-        if group.id == group_id:
+    for other_group in groups:
+        if other_group.id == group_id:
             ok = True
         else:
-            group.etuds.remove(etud)
+            other_group.etuds.remove(etud)
     if not ok:
         group.etuds.append(etud)
         log(f"set_etud_group({etud}, {group})")
@@ -417,7 +415,7 @@ def formsemestre_order_partitions(formsemestre_id: int):
     db.session.commit()
     app.set_sco_dept(formsemestre.departement.acronym)
     sco_cache.invalidate_formsemestre(formsemestre_id)
-    return jsonify(formsemestre.to_dict(convert_objects=True))
+    return jsonify(formsemestre.to_dict_api())
 
 
 @bp.route("/partition/<int:partition_id>/groups/order", methods=["POST"])
@@ -448,6 +446,7 @@ def partition_order_groups(partition_id: int):
     db.session.commit()
     app.set_sco_dept(partition.formsemestre.departement.acronym)
     sco_cache.invalidate_formsemestre(partition.formsemestre_id)
+    log(f"partition_order_groups: {partition} : {group_ids}")
     return jsonify(partition.to_dict(with_groups=True))
 
 
diff --git a/app/models/formsemestre.py b/app/models/formsemestre.py
index b3688dd9..a5514200 100644
--- a/app/models/formsemestre.py
+++ b/app/models/formsemestre.py
@@ -170,6 +170,9 @@ class FormSemestre(db.Model):
         d["titre_formation"] = self.titre_formation()
         if convert_objects:
             d["parcours"] = [p.to_dict() for p in self.parcours]
+            d["departement"] = self.departement.to_dict()
+            d["formation"] = self.formation.to_dict()
+            d["etape_apo"] = self.etapes_apo_str()
         return d
 
     def to_dict_api(self):
@@ -189,8 +192,10 @@ class FormSemestre(db.Model):
             d["date_fin_iso"] = self.date_fin.isoformat()
         else:
             d["date_fin"] = d["date_fin_iso"] = ""
+        d["departement"] = self.departement.to_dict()
         d["etape_apo"] = self.etapes_apo_str()
         d["formsemestre_id"] = self.id
+        d["formation"] = self.formation.to_dict()
         d["parcours"] = [p.to_dict() for p in self.parcours]
         d["responsables"] = [u.id for u in self.responsables]
         d["titre_court"] = self.formation.acronyme