Hello,

> On 21 Mar 2016, at 12:01, hcharg...@medici.tv wrote:
> 
> In my opinion, the fix should not be to set a different default isolation 
> level, as that could trigger other problems that may be very hard to find. I 
> was lucky to find this one. I think that Django should find sequences of 
> operations that are proven to be safe under specific isolation levels.

The problem is to determine what “safe” means here :-) I’m afraid this won’t be 
possible in general (at least not in a remotely efficient fashion) because 
Django inevitably depends on the guarantees of the underlying database, and 
those guarantees are weak at lower isolation levels.

-- 
Aymeric.

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