Race condition when reload modified record but saved

When a modified record is reloaded with saving, the first validation of the reload (just after the save) can fail if there is a One2Many field. This is because the Record.validate after Record.set is asynchronous because of the Record._check_load. So the actual validation can happen after the real reload (via Record.cancel) is happening. So the record is empty for the validation which could result of a wrong evaluation of inverted domain for example.

I think we should check if fields are loaded synchronously (like in tryton) to avoid having promises that are not waited.