> You need to prevent the modification of consuming by using ensure
> rather than deref (@).

Oh - excellent point! I didn't think of that.

When it useful to be able to deref inside a dosync without ensuring?
Ensure seems like a more safe default of what I'd expect from a
transaction. So why not make deref automatically ensure within a
dosync? It takes a bit of care to remember to use ensure instead of
deref in a dosync.


Regards,
Tim.
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