2008/5/21 Juerd Waalboer <juerd@convolution.nl>:
> Indeed. I had made BLOB for this, but it can't prevent the upgrades.
>
> Though the thing that upgrades can be made to check ->isa("BLOB"). Would
> that be possible; would that be desirable?
That would be a bit slow, but most strings aren't blessed anyway, so
it's only a matter of checking SvOBJECT in a first step.
However that would of course imply to pull BLOB in the CORE.