Empty SpectacleRevente and ChoixRevente before do_tirage.

- Usefull if a tirage is launched more than once.
- Ensure full reset of reventes for this tirage in this case.

bda/views.py

@@ -337,6 +337,18 @@ def do_tirage(tirage_elt, token):
     # On inscrit à BdA-Revente ceux qui n'ont pas eu les places voulues
     ChoixRevente = Participant.choicesrevente.through
 
+    # Suppression des reventes demandées/enregistrées (si le tirage est relancé)
+    (
+        ChoixRevente.objects
+        .filter(spectacle__tirage=tirage_elt)
+        .delete()
+    )
+    (
+        SpectacleRevente.objects
+        .filter(attribution__spectacle__tirage=tirage_elt)
+        .delete()
+    )
+
     lost_by = defaultdict(set)
     for show, _, losers in results:
         for loser, _, _, _ in losers: