`bitcoin-cli loadwallet "wallet.dat"` command causes bitcoind crash

log info:
```
bitcoind: wallet/db.cpp:236: BerkeleyEnvironment::VerifyResult BerkeleyEnvironment::Verify(const string&, BerkeleyEnvironment::recoverFunc_type, std::__cxx11::string&): Assertion `mapFileUseCount.count(strFile) == 0' failed.
Aborted (core dumped)
```

Bitcoin Core Daemon version `v0.17.0.0-ge1ed37edaedc85b8c3468bd9a726046344036243`

{
    if (!pdb)
        return;
    if (activeTxn)
        activeTxn->abort();
    activeTxn = nullptr;
    pdb = nullptr;
    if (fFlushOnClose)
        Flush();
    {
        LOCK(cs_db);
        --env->mapFileUseCount[strFile];
    }
    env->m_db_in_use.notify_all();
}
void BerkeleyEnvironment::CloseDb(const std::string& strFile)
{
    {
        LOCK(cs_db);
        auto it = m_databases.find(strFile);
        assert(it != m_databases.end());
        BerkeleyDatabase& database = it->second.get();
        if (database.m_db) {
            
            database.m_db->close(0);
            database.m_db.reset();
        }
    }
}
void BerkeleyEnvironment::ReloadDbEnv()