This commit restores the cache on the document that was lost with the new parsing system [1]. It allows for faster convertion to inline styles after the first time on the same document. [1] https://github.com/odoo/odoo/commit/10e749537186dfb80aee1f2537f3b5804f66cfe5#diff-5922d38ff6520249ff5b3a3240eebc350c6f9f4d9f486d512128c23261c45841L19 closes odoo/odoo#83139 X-original-commit: 0ee96727793cfa64c9cdb9f3ef3b7e6b1ef1f631 Signed-off-by: David Monjoie (dmo) <dmo@odoo.com>