Discounts: Allow "buy X to get Y" with different product sets for X and Y (#3543)

src/pretix/base/migrations/0245_discount_benefit_products.py

@@ -0,0 +1,34 @@
+# Generated by Django 4.2.4 on 2023-08-28 12:30
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("pretixbase", "0244_mediumkeyset"),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="discount",
+            name="benefit_apply_to_addons",
+            field=models.BooleanField(default=True),
+        ),
+        migrations.AddField(
+            model_name="discount",
+            name="benefit_ignore_voucher_discounted",
+            field=models.BooleanField(default=False),
+        ),
+        migrations.AddField(
+            model_name="discount",
+            name="benefit_limit_products",
+            field=models.ManyToManyField(
+                related_name="benefit_discounts", to="pretixbase.item"
+            ),
+        ),
+        migrations.AddField(
+            model_name="discount",
+            name="benefit_same_products",
+            field=models.BooleanField(default=True),
+        ),
+    ]