diff --git a/odoo/tests/form.py b/odoo/tests/form.py
index ce2ed75b84e..abf641a86a7 100644
--- a/odoo/tests/form.py
+++ b/odoo/tests/form.py
@@ -283,7 +283,11 @@ class Form:
         """ Initialize the form for an existing record. """
         assert self._record.id, "editing unstored records is not supported"
         self._values.clear()
+
         [record_values] = self._record.web_read(self._view['fields_spec'])
+        self._env.flush_all()
+        self._env.clear()  # discard cache and pending recomputations
+
         values = convert_read_to_form(record_values, self._view['fields'])
         self._values.update(values)