/longpolling/poll requests are most often requests to Odoo.  Moreover,
such requests may be sent at the same moment from all users.  For
example, when all users are subscribed to a common channel and someone
sent a message, all current polls are closed to deliver the notification
and after that, all clients start the request again.

If some users have several clients open (e.g. on desktop and mobile),
they may send many parallel requests and hence make concurrent queries
to update presence.  We don't need be sure that every such query is
processed.  So, just fail fast and carry on polling.

To test perfomance impact of this commit, copy curl command for poll request
from browser network tool and repeatly execute it, e.g.,
```
for i in {1..1000}
do
   sleep 0.1
   curl ... &
done
```

Without this commit you may notice such warnings in the logs:
```
...  odoo.service.model: SERIALIZATION_FAILURE, retry 1/5 in 0.2071 sec...
```

At that moment, try to make normal odoo operations (e.g. create a sale
order): it would work slower than usual.

---

opw-2451865
close #57067

closes odoo/odoo#67390

X-original-commit: aad9cbe80dae28c0869fe6f543fbe0118357ce57
Signed-off-by: Raphael Collet (rco) <rco@openerp.com>
Signed-off-by: Ivan Yelizariev // IEL <yelizariev@users.noreply.github.com>

Description of the issue/feature this PR addresses:

Current behavior before PR:

Desired behavior after PR is merged:




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