diff --git a/app/scodoc/sco_edit_formation.py b/app/scodoc/sco_edit_formation.py
index 317e3e8b..7ba9ad40 100644
--- a/app/scodoc/sco_edit_formation.py
+++ b/app/scodoc/sco_edit_formation.py
@@ -307,7 +307,6 @@ def do_formation_edit(args):
     sco_formations._formationEditor.edit(cnx, args)
     formation: Formation = Formation.query.get(args["formation_id"])
     formation.invalidate_cached_sems()
-    formation.sanitize_old_formation()
 
 
 def module_move(module_id, after=0, redirect=True):
diff --git a/app/scodoc/sco_edit_ue.py b/app/scodoc/sco_edit_ue.py
index f2c5d6cd..07ff217a 100644
--- a/app/scodoc/sco_edit_ue.py
+++ b/app/scodoc/sco_edit_ue.py
@@ -509,7 +509,6 @@ def ue_table(formation_id=None, semestre_idx=1, msg=""):  # was ue_list
     formation: Formation = Formation.query.get(formation_id)
     if not formation:
         raise ScoValueError("invalid formation_id")
-    formation.sanitize_old_formation()
     parcours = formation.get_parcours()
     is_apc = parcours.APC_SAE
     locked = formation.has_locked_sems()
@@ -1209,7 +1208,6 @@ def do_ue_edit(args, bypass_lock=False, dont_invalidate_cache=False):
     if not dont_invalidate_cache:
         # Invalide les semestres utilisant cette formation:
         formation.invalidate_cached_sems()
-    formation.sanitize_old_formation()
 
 
 # essai edition en ligne: