Fix CSV process

Signed-off-by: Emmy D'Anello <emmy.danello@animath.fr>

participation/forms.py

@@ -231,6 +231,8 @@ class UploadNotesForm(forms.Form):
             if len(line) < 19:
                 continue
             name = line[0]
+            if name in ["moyenne", "coefficient", "sous-total"]:
+                continue
             notes = line[1:19]
             if not all(s.isnumeric() for s in notes):
                 continue