[FIX] cooperator: Set company on sequences in migration script

Signed-off-by: Carmen Bianca BAKKER <carmen@coopiteasy.be>

cooperator/migrations/14.0.1.7.0/pre-migration.py

@@ -12,12 +12,18 @@
 def migrate(cr, version):
     env = api.Environment(cr, SUPERUSER_ID, {})
     company = env.ref("base.main_company")
+    # Use the existing and already-in-use sequences for company 1.
     if company:
+        # Set sequences on company and company on sequences
+        # First sequence
         company.cooperator_subscription_sequence_id = env.ref(
             "cooperator.sequence_subscription"
         )
+        company.cooperator_subscription_sequence_id.company_id = company
+        # Second sequence
         company.cooperator_register_operation_sequence_id = env.ref(
             "cooperator.sequence_register_operation"
         )
+        company.cooperator_register_operation_sequence_id.company_id = company
     other_companies = env["res.company"].search([]) - company
     other_companies._create_cooperator_sequences()