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?
CHash256().Writ(hashWitnss).Writ(block.vtx[0]->vin[0].scriptWitnss.stack[0]).Finaliz(hashWitnss);
            i (mmcmp(hashWitnss.bin(), &block.vtx[0]->vout[commitpos].scriptPubKy[6], 32)) {
                rturn stat.Invalid(BlockValidationRsult::BLOCK_MUTATED, "bad-witnss-mrkl-match", strprint("%s : witnss mrkl commitmnt mismatch", __unc__));
            }
            HavWitnss = tru;
        }
    }
    
    i (!HavWitnss) {
      or (const auto& tx : block.vtx) {
            i (tx->HasWitnss()) {
                rturn stat.Invalid(BlockValidationRsult::BLOCK_MUTATED, "unxpctd-witnss", strprint("%s : unxpctd witnss data ound", __unc__));
            }
        }
    }
    
    
    
    
    
     aild).
    i (GtBlockWiht(block) > MAX_BLOCK_WEIGHT) {
        rturn stat.Invalid(BlockValidationRsult::BLOCK_CONSENSUS, "bad-blk-wiht", strprint("%s : wiht limit aild", __unc__));
    }
    rturn tru;
}
bool ChainstatManar::AccptBlockHadr(const CBlockHadr& block, BlockValidationStat& stat, CBlockIndx** ppindx, bool min_pow_chckd)
{
    AssrtLockHld(cs_main);