diff --git a/src/agenda_culturel/forms.py b/src/agenda_culturel/forms.py
index d5eccba..742a2d0 100644
--- a/src/agenda_culturel/forms.py
+++ b/src/agenda_culturel/forms.py
@@ -114,7 +114,6 @@ class EventForm(ModelForm):
         self.fields['category'].queryset = self.fields['category'].queryset.order_by('name')
         self.fields['category'].empty_label = None
         self.fields['category'].initial = Category.get_default_category()
-        logger.warning("ça se passe là")
 
     def is_clone_from_url(self):
         return self.cloning
@@ -160,8 +159,8 @@ class FixDuplicates(Form):
 
     def __init__(self, *args, **kwargs):
         edup = kwargs.pop("edup", None)
-        events = edup.event_set.all()
-        nb_events = edup.event_set.count()
+        events = edup.get_duplicated()
+        nb_events = len(events)
         super().__init__(*args, **kwargs)
 
         choices = []
diff --git a/src/agenda_culturel/models.py b/src/agenda_culturel/models.py
index be8de14..3bcbc7c 100644
--- a/src/agenda_culturel/models.py
+++ b/src/agenda_culturel/models.py
@@ -216,13 +216,17 @@ class DuplicatedEvents(models.Model):
         verbose_name = _("Duplicated events")
         verbose_name_plural = _("Duplicated events")
 
+    def __init__(self, *args, **kwargs):
+        self.events = None
+        super().__init__(*args, **kwargs)
+
     def nb_duplicated(self):
         return self.event_set.count()
 
     def get_duplicated(self):
-        return self.event_set.order_by(
-            "created_date"
-        )
+        if self.events is None:
+            self.events = self.event_set.order_by("created_date").all()
+        return self.events
 
     def get_absolute_url(self):
         return reverse("view_duplicate", kwargs={"pk": self.pk})
@@ -235,7 +239,7 @@ class DuplicatedEvents(models.Model):
 
     def merge_into(self, other):
         # for all objects associated to this group
-        for e in self.event_set.all():
+        for e in self.get_duplicated():
             # change their group membership
             e.other_versions = other
             # save them
@@ -248,7 +252,7 @@ class DuplicatedEvents(models.Model):
     # as the representative one. 
     # if no event is given, the last one (by creation date) is selected.
     def fix(self, event=None):
-        events = self.event_set.all()
+        events = self.get_duplicated()
         if event is None:
             events = events.order_by("-created_date")
         for e in events:
@@ -289,7 +293,7 @@ class DuplicatedEvents(models.Model):
         to_be_fixed = []
 
         for d in DuplicatedEvents.not_fixed_qs().prefetch_related('event_set'):
-            comp = Event.get_comparison(d.event_set.all())
+            comp = Event.get_comparison(d.get_duplicated())
             similar = len([c for c in comp if not c["similar"]]) == 0
             if similar:
                 to_be_fixed.append(d)
@@ -297,8 +301,11 @@ class DuplicatedEvents(models.Model):
         nb = len(to_be_fixed)
         if nb > 0:
             logger.warning("Removing: " + str(nb) + " similar duplicated")
-            for e in to_be_fixed:
-                logger.warning(" " + e.event_set.first().title)
+            for d in to_be_fixed:
+                if len(d.get_duplicated()) == 0:
+                    logger.warning(" empty")
+                else:
+                    logger.warning(" " + d.get_duplicated()[0].title)
         for s in to_be_fixed:
             s.fix()
 
@@ -864,7 +871,6 @@ class Event(models.Model):
             self.other_versions is not None
             and self.other_versions.nb_duplicated() == 1
         ):
-            logger.warning("le other est juste dans ", self.other_versions.event_set.all())
             self.other_versions.delete()
             self.other_versions = None