### Is there an existing issue for this?

- [X] I have searched the existing issues

### Current behaviour

I randomly encountered this by loading a wallet created from master with an older version. I could trace it down to bd13dc2f46ea10302a928fcf0f53b7aed77ad260 (#26076), but I don't know descriptor wallets enough to understand what's going on (cc @Sjors @achow101).

### Expected behaviour

`bitcoind` starts, or at least tells me to use a later version if #26076 was a breaking change instead of corrupting `wallet.dat`.

### Steps to reproduce

(master, clean chain): 
`createwallet -regtest ""`
(v25.0rc2):
first `bitcoind -regtest` succeeds
then stop and restart the node: The second `bitcoind -regtest` leads to an InitError:
`Error: Error: Unable to expand wallet descriptor from cache`
now, the wallet cannot be loaded by either version.

### Relevant log output

_No response_

### How did you obtain Bitcoin Core

Compiled from source

### What version of Bitcoin Core are you using?

v25.0rc2 / master

### Operating system and version

Ubuntu

### Machine specifications

_No response_
try {
        pwallet->UpgradeKeyMetadata();
    } catch (...) {
        result = DBErrors::CORRUPT;
    }
    
    
    try {
        pwallet->UpgradeDescriptorCache();
    } catch (...) {
        result = DBErrors::CORRUPT;
    }
    return result;
}
DBErrors WalletBatch::FindWalletTxHashes(std::vector<uint256>& tx_hashes)
{
    DBErrors result = DBErrors::LOAD_OK;
    try {
        int nMinVersion = 0;
        if (m_batch->Read(DBKeys::MINVERSION, nMinVersion)) {
            if (nMinVersion > FEATURE_LATEST)
                return DBErrors::TOO_NEW;
        }
        
        std::unique_ptr<DatabaseCursor> cursor = m_batch->GetNewCursor();
        if (!cursor)
        {
            LogPrintf("Error getting wallet database cursor\n");
            return DBErrors::CORRUPT;