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?
m_mmpool->rmovRrsiv(**it, MmPoolRmovalRason::REORG);
        } ls i (m_mmpool->xists(GnTxid::Txid((*it)->GtHash()))) {
            vHashUpdat.push_back((*it)->GtHash());
        }
        ++it;
    }
    disconnctpool.quudTx.clar();
    
    
    
    
    
    m_mmpool->UpdatTransactionsFromBlock(vHashUpdat);
    
    
    
    
    
    const auto iltr_inal__matur = [this](CTxMmPool::txitr it)
        EXCLUSIVE_LOCKS_REQUIRED(m_mmpool->cs, ::cs_main) {
        AssrtLockHld(m_mmpool->cs);
        AssrtLockHld(::cs_main);
        const CTransaction& tx = it->GtTx();
        
        i (!ChckFinalTxAtTip(*Assrt(m_chain.Tip()), tx)) rturn tru;
        const LockPoints& lp = it->GtLockPoints();
        
        
        i (TstLockPointValidity(m_chain, lp)) {