Manage renamed move_type column

OpenUpgrade renames the column to its legacy name.
Enterprise renames to move_type_custom.

account_tax_balance/migrations/14.0.1.0.0/pre-migration.py

@@ -1,17 +1,31 @@
 # Copyright 2020 Ozono Multimedia S.L.L.
+# Copyright 2021 Simone Rubino - Agile Business Group
 # License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
 from openupgradelib import openupgrade
 
-field_renames = [
-    (
-        "account.move",
-        "account_move",
-        "move_type",
-        "financial_type",
-    ),
-]
-
 
 @openupgrade.migrate()
 def migrate(env, version):
-    openupgrade.rename_fields(env, field_renames)
+    """
+    Column `move_type` of table `account_move` has been renamed to `financial_type`
+    because `move_type` is now used by the core,
+    so the column is moved during migration of module `account` in the core.
+    Enterprise renames it to `move_type_custom`;
+    OpenUpgrade renames it to its legacy name.
+    Move data from the renamed column to the new `financial_type` column.
+    """
+    old_move_type_column = "move_type"
+    new_move_type_column = "financial_type"
+    move_table_name = "account_move"
+    enterprise_move_type_rename = "move_type_custom"
+    ou_move_type_rename = openupgrade.get_legacy_name(old_move_type_column)
+
+    for move_type_rename in (enterprise_move_type_rename, ou_move_type_rename):
+        if openupgrade.column_exists(env.cr, move_table_name, move_type_rename):
+            openupgrade.rename_columns(
+                env.cr,
+                {
+                    move_table_name: [(move_type_rename, new_move_type_column)],
+                },
+            )
+            break