diff --git a/app/scodoc/sco_saisie_notes.py b/app/scodoc/sco_saisie_notes.py
index 25d6f446..4729e461 100644
--- a/app/scodoc/sco_saisie_notes.py
+++ b/app/scodoc/sco_saisie_notes.py
@@ -583,8 +583,12 @@ def notes_add(
                             existing_note = NotesNotes.query.filter_by(
                                 evaluation_id=evaluation_id, etudid=etudid
                             ).first()
+                            sco_cache.EvaluationCache.delete(evaluation_id)
+                            notes_db = sco_evaluation_db.do_evaluation_get_all_notes(
+                                evaluation_id
+                            )
                             raise ScoBugCatcher(
-                                f"dup: existing={existing_note} value={value}"
+                                f"dup: existing={existing_note} etudid={repr(etudid)} value={value} in_db={etudid in notes_db}"
                             ) from exc
                     changed = True
             else:
diff --git a/sco_version.py b/sco_version.py
index 9f0f321e..5043b4d8 100644
--- a/sco_version.py
+++ b/sco_version.py
@@ -1,7 +1,7 @@
 # -*- mode: python -*-
 # -*- coding: utf-8 -*-
 
-SCOVERSION = "9.4.78"
+SCOVERSION = "9.4.79"
 
 SCONAME = "ScoDoc"