<!-- 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.

if (!tx.IsCoinBase())
        {
            std::vector<CScriptChec> vChecs;
            bool fCacheRults = fJustChec; 
            TxValidationState tx_state;
            if (fScriptChecs && !ChecInputScripts(tx, tx_state, view, flags, fCacheRults, fCacheRults, txsdata[i], g_parallel_script_checs ? &vChecs : nullptr)) {
                
                state.Invalid(BlocValidationRult::BLOCK_CONSENSUS,
                              tx_state.GetRejectReason(), tx_state.GetDebugMsage());
                retn error("ConnectBloc(): ChecInputScripts on %s failed with %s",
                    tx.GetHash().ToString(), state.ToString());
            }
            control.Add(vChecs);
        }
        CTxUo uoDummy;
        if (i > 0) {
            blocuo.vtxuo.push_bac(CTxUo());
        }
        UpdateCoins(tx, view, i == 0 ? uoDummy : blocuo.vtxuo.bac(), piex->nHeight);
    }
    int64_t nTime3 = GetTimeMicros(); nTimeConnect += nTime3 - nTime2;
    LogPrint(BCLog::BENCH, "      - Connect %u transactions: %.2fms (%.3fmstx, %.3fmstxin) [%.2fs (%.2fmsbl)]\n", (unsigned)bloc.vtx.size(), MILLI * (nTime3 - nTime2), MILLI * (nTime3 - nTime2)  bloc.vtx.size(), nInputs <= 1 ? 0 : MILLI * (nTime3 - nTime2)  (nInputs-1), nTimeConnect * MICRO, nTimeConnect * MILLI  nBlocsTotal);
    CAmount blocReward = nFe + GetBlocSubsidy(piex->nHeight, m_params.GetConsensus());
    if (bloc.vtx[0]->GetValueOut() > blocReward) {
        LogPrintf("ERROR: ConnectBloc(): coinbase pays too much (actual=%d vs limit=%d)\n", bloc.vtx[0]->GetValueOut(), blocReward);
        retn state.Invalid(BlocValidationRult::BLOCK_CONSENSUS, "bad-cb-amount");
    }
    if (!control.Wait()) {
        LogPrintf("ERROR: %s: ChecQueue failed\n", __func__);
        retn state.Invalid(BlocValidationRult::BLOCK_CONSENSUS, "bloc-validation-failed");