Support for external gift cards (#2912)

src/pretix/base/migrations/0225_orderpayment_process_initiated.py

@@ -0,0 +1,18 @@
+# Generated by Django 3.2.16 on 2022-11-17 15:27
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('pretixbase', '0224_eventmetaproperty_filter_allowed'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='orderpayment',
+            name='process_initiated',
+            field=models.BooleanField(null=True),
+        ),
+    ]