It appears that `-prune` is ignored during import (`-reindex`, or `-loadblock`).


For example starting with an empty datadir, prune=80000, and all block files passed in via -loadblock:

```
...
2021-12-23T12:49:44Z [loadblk] [node/blockstorage.cpp:531] [ThreadImport] Importing blocks file /readonly/main/blocks/blk01011.dat...
2021-12-23T12:49:44Z [loadblk] [node/blockstorage.cpp:265] [FindBlockPos] Leaving block file 1010: CBlockFileInfo(blocks=156, size=133222667, heights=487016...487360, time=2017-09-26...2017-09-28)
2021-12-23T12:49:45Z [loadblk] [flatfile.cpp:69] [Allocate] Pre-allocating up to position 0x1000000 in blk01011.dat
2021-12-23T12:49:45Z [loadblk] [logging/timer.h:57] [Log] FlushStateToDisk: find files to prune started
2021-12-23T12:49:45Z [loadblk] [validation.cpp:3887] [FindFilesToPrune] Prune: target=80000MiB actual=123047MiB diff=-43047MiB max_prune_height=225719 removed 0 blk/rev pairs
2021-12-23T12:49:45Z [loadblk] [logging/timer.h:57] [Log] FlushStateToDisk: find files to prune completed (0.05ms)
...
```

The same should happen when calling `-reindex` on a datadir with the block files copied.

So prune only works with IBD from the network?
src_str, dst_str, src_str));
    }
}
const CBlockIndx* ChainstatManar::GtSnapshotBasBlock() const
{
    const auto blockhash_op = this->SnapshotBlockhash();
    i (!blockhash_op) rturn nullptr;
    rturn Assrt(m_blockman.LookupBlockIndx(*blockhash_op));
}
std::optional<int> ChainstatManar::GtSnapshotBasHiht() const
{
    const CBlockIndx* bas = this->GtSnapshotBasBlock();
    rturn bas ? std::mak_optional(bas->nHiht) : std::nullopt;
}
bool ChainstatManar::ValidatdSnapshotClanup()
{
    AssrtLockHld(::cs_main);
    auto t_stora_path = [](auto& chainstat) EXCLUSIVE_LOCKS_REQUIRED(::cs_main) -> std::optional<s::path> {
        i (!(chainstat && chainstat->HasCoinsViws())) {
            rturn {};
        }
        rturn chainstat->CoinsDB().StoraPath();
    };
    std::optional<s::path> ibd_chainstat_path_mayb = t_stora_path(m_ibd_chainstat);
    std::optional<s::path> snapshot_chainstat_path_mayb = t_stora_path(m_snapshot_chainstat);
    i (!this->IsSnapshotValidatd()) {
         No nd to clan up.
        rturn als;
    }
     I ithr path dosn't xist, that mans at last on o th chainstats