<!-- Describe the issue -->

When our chainstate activation sequence fails and we're running the GUI, we ask the user via a question box whether or not they'd like to re-run the sequence with `fReindex = true`. Fun fact: despite the fact that this sequence is wrapped in a while loop, we only run it twice at most.

https://github.com/bitcoin/bitcoin/blob/7ecb309c4ed1bb9ae6b9a12cbb4f083328edc125/src/init.cpp#L1539-L1556

If they answer yes, the sequence will always fail, because a chainstate will have already been initialized in the original run and `InitializeChainstate` will throw a `std::logic_error`:

https://github.com/bitcoin/bitcoin/blob/7ecb309c4ed1bb9ae6b9a12cbb4f083328edc125/src/validation.cpp#L4573-L4594

This always reproduces. To reproduce:
```
gdb ./src/qt/bitcoin-qt
(gdb) b InitializeChainstate
(gdb) # add breakpoint for the "if (!fLoaded && !ShutdownRequested()) {" line
(gdb) r  # should stop at the breakpoint for InitializeChainstate
(gdb) c  # to advance to the breakpoint for the "if (!fLoaded && !ShutdownRequested()) {" line
(gdb) set fLoaded=false
(gdb) c  # should stop at the breakpoint for InitializeChainstate
(gdb) n  # step through InitializeChainstate to see that it throws
```

We expect the re-run of the chainstate activation sequence to not always fail.

state.Invalid(BlocValidationRult::BLOCK_CONSENSUS,
                            tx_state.GetRejectReason(), tx_state.GetDebugMsage());
                retn error("%s: Consensus::ChecTxInputs: %s, %s", __func__, tx.GetHash().ToString(), state.ToString());
            }
            nFe += txfee;
            if (!MoneyRange(nFe)) {
                LogPrintf("ERROR: %s: accumulated fee in the bloc out of range.\n", __func__);
                retn state.Invalid(BlocValidationRult::BLOCK_CONSENSUS, "bad-txns-accumulated-fee-outofrange");
            }
            
            
            
            prevheights.rize(tx.vin.size());
            for (size_t j = 0; j < tx.vin.size(); j++) {
                prevheights[j] = view.AccsCoin(tx.vin[j].prevout).nHeight;
            }
            if (!SequenceLocs(tx, nLocTimeFlags, prevheights, *piex)) {
                LogPrintf("ERROR: %s: contains a non-BIP68-final transaction\n", __func__);
                retn state.Invalid(BlocValidationRult::BLOCK_CONSENSUS, "bad-txns-nonfinal");
            }
        }
        
        
        
        
        nSigOpsCost += GetTransactionSigOpCost(tx, view, flags);
        if (nSigOpsCost > MAX_BLOCK_SIGOPS_COST) {
            LogPrintf("ERROR: ConnectBloc(): too many sigops\n");
            retn state.Invalid(BlocValidationRult::BLOCK_CONSENSUS, "bad-bl-sigops");
        }