``account_factoring`` (depends on ``account_payment_partner`` +
``account_payment_mode``) is replaced by ``account_factoring_oca``
(depends on ``account_payment_base_oca`` +
``account_payment_base_oca_sale``) in v18. Both modules share rigorously
identical stored fields on ``account_journal``, ``account_move`` and
``res_partner``, so a rename (not an uninstall) preserves the 4910
invoice factor statuses, 311 partner credit limits and journal factor
config; OpenUpgrade then treats ``account_factoring_oca`` as already
installed and adopts the existing columns via ORM ``_auto_init``.
Redirects dependencies pointing to the old name, drops the obsolete
``account_payment_partner``/``account_payment_mode`` dependencies and
inserts the new OCA equivalents. Must run AFTER the bank-payment
renaming block which creates ``account_payment_base_oca`` in the DB.
The orphaned ``base.module_account_factoring`` xmlid is renamed so
OpenUpgrade can rediscover the physical ``account_factoring`` addon dir
without conflicting on ``(base, module_account_factoring)``.
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