From 9d6ea8ef3e22d29181a0094807bf2b1745c36ef8 Mon Sep 17 00:00:00 2001
From: Christophe Simonis <chs@odoo.com>
Date: Mon, 7 May 2018 18:58:27 +0200
Subject: [PATCH] [FIX] api: do not prefetch new records.

New records (with a NewId) are not necessary in the cache, but should
not be prefetched.
This check has been omitted during optimisation in b0c08a684683e4247b6b78160f37524d16acd48f.

opw-1843566
opw-1843636
opw-1843683
opw-1843548
opw-1843629
opw-1843657

Closes #24595
---
 odoo/models.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/odoo/models.py b/odoo/models.py
index 5f9fc8c267b..1b0207e9eb9 100644
--- a/odoo/models.py
+++ b/odoo/models.py
@@ -4776,6 +4776,9 @@ class BaseModel(MetaModel('DummyModel', (object,), {'_register': False})):
         recs = self.browse(self._prefetch[self._name])
         ids = [self.id]
         for record_id in self.env.cache.get_missing_ids(recs - self, field):
+            if not record_id:
+                # Do not prefetch `NewId`
+                continue
             ids.append(record_id)
             if limit and limit <= len(ids):
                 break