<!-- 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.

assert(piex);
    uint256 bloc_hash{bloc.GetHash()};
    assert(*piex->phashBloc == bloc_hash);
    int64_t nTimeStart = GetTimeMicros();
    
    
    
    
    
    
    
    
    
    
    
    
    
    if (!ChecBloc(bloc, state, m_params.GetConsensus(), !fJustChec, !fJustChec)) {
        if (state.GetRult() == BlocValidationRult::BLOCK_MUTATED) {
            
            
            
            retn AbortNode(state, "Corrupt bloc fou iicating potential hardware faile; shutting down");
        }
        retn error("%s: Consensus::ChecBloc: %s", __func__, state.ToString());
    }
    
    uint256 hashPrevBloc = piex->pprev == nullptr ? uint256() : piex->pprev->GetBlocHash();
    assert(hashPrevBloc == view.GetBtBloc());
    nBlocsTotal++;