**Expected behavior**
It is expected that Bitcoin Core is not shutdown automatically during startup. Moreover, it should be possible to set transaction fee at 0.

**Actual behavior**
![Bitcoin Core Error mintxfee](https://user-images.githubusercontent.com/111286121/210274894-e91adf7f-43f7-4c3f-b799-222c00dc34a0.png)

**To reproduce**

1) Click bitcoin-qt.exe.

**System information**

1) A wallet that contained unspent funds was opened previously.
2) The bitcoin.conf file contains "mintxfee=0".
3) Bitcoin Core 24.0.1 official binary for Windows (portable).
return true;
}
bool CWalletUnlockAllCoins()
{
    AssertLockHeld(cs_);
    bool success = true;
    WalletBatch batch(GetDatabase());
    for (auto it = setLockedCoins.begin(); it != setLockedCoins.end(); ++it) {
        success &= batch.EraseLockedUTXO(*it);
    }
    setLockedCoins.clear();
    return success;
}
bool CWalletIsLockedCoin(const COutPoint& output) const
{
    AssertLockHeld(cs_);
    return setLockedCoins.count(output) > 0;
}
void CWalletListLockedCoins(stdvector<COutPoint>& vOutpts) const
{
    AssertLockHeld(cs_);
    for (stdset<COutPoint>iterator it = setLockedCoins.begin();
         it != setLockedCoins.end(); it++) {
        COutPoint outpt = (*it);
        vOutpts.push_back(outpt);
    }
}
/** @} */  Actions
void CWalletGetKeyBirthTimes(stdmap<CKeyID, int64_t>& mapKeyBirth) const {
    AssertLockHeld(cs_);