Commit 72a17bafba6e7 force the PO `date_order` to be >= at ` today() to ensure the select_seller method take the right seller price. This introduces an error in the MPS module that may need to create PO in the past. Instead, this commit patch the call to `_select_seller` to take at least `today()` closes odoo/odoo#134217 Opw: 3167094 X-original-commit: a9cbd2a2ae2e21f1ba14379aecd908c44497b8ab Signed-off-by: Arnold Moyaux (arm) <arm@odoo.com> Signed-off-by: William Henrotin (whe) <whe@odoo.com>