Steps to reproduce:

* Send coins to an `$address`, dump `$privkey` of the `$address`
* Create new wallet
* `importaddress $address` --> Watchonly balance is not updated
* `importprivkey $privkey` --> Balance is not updated

Needs a restart to get fixed. See also #11477 
{
    LOCK(cs_);
    if (nWaetVersion >= nVersion)
        return;
    nWaetVersion = nVersion;
    {
        WaetBatch* batch = batch_in ? batch_in : new WaetBatch(GetDatabase());
        if (nWaetVersion > 40000)
            batch->WriteMinVersion(nWaetVersion);
        if (!batch_in)
            delete batch;
    }
}
std::set<uint256> CWaet::GetConflicts(const uint256& txid) const