[FIX] stock_account: set display_type to cogs

In v15, the lines were set to is_anglo_saxon_line == True
in v16, field display_display is used.

docsource/modules150-160.rst

@@ -770,7 +770,7 @@ Module coverage 15.0 -> 16.0
 +-------------------------------------------------+----------------------+-------------------------------------------------+
 | stock                                           | Done                 |                                                 |
 +-------------------------------------------------+----------------------+-------------------------------------------------+
-| stock_account                                   |  Nothing to do       |                                                 |
+| stock_account                                   | Done                 |                                                 |
 +-------------------------------------------------+----------------------+-------------------------------------------------+
 | stock_dropshipping                              |                      |                                                 |
 +-------------------------------------------------+----------------------+-------------------------------------------------+

openupgrade_scripts/scripts/stock_account/16.0.1.1/pre-migration.py

@@ -0,0 +1,33 @@
+# Copyright 2023 Coop IT Easy - Robin Keunen
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
+
+from openupgradelib import openupgrade
+
+
+def _account_move_line_fill_cogs_display_type(env):
+    """
+    Fill the display type for journal items corresponding to Cost of Good Sold
+    lines (COGS) for customer invoices.
+    In v15, the lines were set to is_anglo_saxon_line == True, in v16
+    field display_display is used.
+
+    openupgrade account migration script already sets display_type
+    in _account_move_fast_fill_display_type (pre-migration)
+
+    cf _stock_account_prepare_anglo_saxon_out_lines_vals
+    :param env:
+    :return:
+    """
+    openupgrade.logged_query(
+        env.cr,
+        """
+        UPDATE account_move_line
+           SET display_type = 'cogs'
+        WHERE is_anglo_saxon_line;
+        """,
+    )
+
+
+@openupgrade.migrate()
+def migrate(env, version):
+    _account_move_line_fill_cogs_display_type(env)