Allow to disable filter support for meta properties (#2901)

src/pretix/base/migrations/0224_eventmetaproperty_filter_allowed.py

@@ -0,0 +1,18 @@
+# Generated by Django 3.2.16 on 2022-11-14 11:32
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('pretixbase', '0223_voucher_min_usages'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='eventmetaproperty',
+            name='filter_allowed',
+            field=models.BooleanField(default=True),
+        ),
+    ]