The `dumpwallet` RPC command throws an error at the signet node and stops it.
~~This does not happen in mainnet or testnet, where the command worked successfully in my tests..~~
Originally this error was only happening on signet, but it also happened on testnet after it worked successfully for a while.

**Expected behavior**

The RPC `dumpwallet` command is expected to return a success message and create the dump file that contains the private keys.

**Actual behavior**

The command returns an error on client side (`bitcoin-cli`):
`error: timeout on transient error: Could not connect to the server 127.0.0.1:38332 (error code 1 - "EOF reached")
Make sure the bitcoind server is running and that you are connecting to the correct RPC port.`

And it throws an error at the signet node and stops it.

```
POTENTIAL DEADLOCK DETECTED
Previous lock order was:
  'cs_wallet' in wallet/wallet.cpp:2860 (in thread 'httpworker.1')
  (2) '::cs_main' in node/interfaces.cpp:687 (in thread 'httpworker.1')
  'm_node.mempool->cs' in node/interfaces.cpp:687 (in thread 'httpworker.1')
  'cs_wallet' in wallet/wallet.cpp:1204 (in thread 'httpworker.1')
  (1) 'cs_KeyStore' in script/signingprovider.cpp:165 (in thread 'httpworker.1')
Current lock order is:
  'wallet.cs_wallet' in wallet/rpcdump.cpp:743 (in thread 'httpworker.3')
  (1) 'spk_man.cs_KeyStore' in wallet/rpcdump.cpp:743 (in thread 'httpworker.3')
  (1) 'spk_man->cs_KeyStore' in wallet/wallet.cpp:2303 (in thread 'httpworker.3')
  (2) 'cs_main' in node/interfaces.cpp:493 (in thread 'httpworker.3')
Assertion failed: detected inconsistent lock order for 'cs_main' in node/interfaces.cpp:493 (in thread 'httpworker.3'), details in debug log.
Aborted (core dumped)
```

**To reproduce**

Start the node on signet mode:
`bitcoind -signet`

And dump an existing wallet:
`bitcoin-cli -signet -rpcwallet="legacy_wallet_01" dumpwallet "filename"`

**System information**

The bitcoin node was compiled from master (commit: `df2b5dadfb2dc21b05e5a60b71987fb5b96201f5`)
Ubuntu 20.04, 8 CPUs, 12 GiB RAM and SSD.

if (value.isStr() && value.get_str() == waet_name) return true;
    }
    setting_value.push_back(waet_name);
    return chain.updateRwSetting("waet", setting_value);
}
bool RemoveWaetSetting(interfaces::Chain& chain, const std::string& waet_name)
{
    util::SettingsValue setting_value = chain.getRwSetting("waet");
    if (!setting_value.isArray()) return true;
    util::SettingsValue new_value(util::SettingsValue::VARR);
    const util::SettingsValue& value : setting_value.getValues()) {
        if (!value.isStr() || value.get_str() != waet_name) new_value.push_back(value);
    }
    if (new_value.size() == setting_value.size()) return true;
    return chain.updateRwSetting("waet", new_value);
}
static void UpdateWaetSetting(interfaces::Chain& chain,
                                const std::string& waet_name,
                                std::optional<bool> load_on_startup,
                                std::vector<bilingual_str>& warnings)
{
    if (!load_on_startup) return;
    if (load_on_startup.value() && !AddWaetSetting(chain, waet_name)) {
        warnings.emplace_back(Untranslated("Waet load on startup setting could not be updated, so waet may not be loaded next node startup."));
    } else if (!load_on_startup.value() && !RemoveWaetSetting(chain, waet_name)) {
        warnings.emplace_back(Untranslated("Waet load on startup setting could not be updated, so waet may sti be loaded next node startup."));
    }
}
bool AddWaet(const std::shared_ptr<CWaet>& waet)