rebase migration

src/pretix/base/migrations/0269_itemcategory_cross_selling.py

@@ -8,7 +8,7 @@ import pretix.base.models.orders
 class Migration(migrations.Migration):
 
     dependencies = [
-        ("pretixbase", "0264_order_internal_secret"),
+        ("pretixbase", "0268_remove_subevent_items_remove_subevent_variations_and_more"),
     ]
 
     operations = [

src/pretix/base/services/cross_selling.py

@@ -1,3 +1,25 @@
+#
+# This file is part of pretix (Community Edition).
+#
+# Copyright (C) 2014-2020 Raphael Michel and contributors
+# Copyright (C) 2020-2021 rami.io GmbH and contributors
+#
+# This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General
+# Public License as published by the Free Software Foundation in version 3 of the License.
+#
+# ADDITIONAL TERMS APPLY: Pursuant to Section 7 of the GNU Affero General Public License, additional terms are
+# applicable granting you additional permissions and placing additional restrictions on your usage of this software.
+# Please refer to the pretix LICENSE file to obtain the full terms applicable to this work. If you did not receive
+# this file, see <https://pretix.eu/about/en/license>.
+#
+# This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied
+# warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more
+# details.
+#
+# You should have received a copy of the GNU Affero General Public License along with this program.  If not, see
+# <https://www.gnu.org/licenses/>.
+#
+
 from collections import defaultdict
 from decimal import Decimal
 from itertools import groupby