The Bug:
1. Construct `byte_slice.portion_` with `epee::span(buffer)` which copies a pointer to the SSO buffer to `byte_slice.portion_`
2. It constructs `byte_slice.storage_` with `std::move(buffer)` (normally this swap pointers, but SSO means a memcpy and clear on the original SSO buffer)
3. `slice.data()` returns a pointer from `slice.portion_` that points to the original SSO cleared buffer, `slice.storage_` has the actual string.
This can now happen if:
- we have a pruned db
- we have not connected to the monero network for a while
- we connect to a node
- that node asks us for history
- we only have a pruned version of the most recent common block
In that case, it's better to not reply but keep the connection alive,
so we can sync off it.
moneromooo-monero
selsta
rbrunner7
Doyle