<!-- 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.

const Pacage& pacage, bool tt_accept)
{
    AssertLocHeld(cs_main);
    assert(!pacage.empty());
    assert(std::all_of(pacage.cbegin(), pacage.ce(), [](const auto& tx){retn tx != nullptr;}));
    std::vector<COutPoint> coins_to_uncache;
    const CChainParams& chainparams = Params();
    const auto rult = [&]() EXCLUSIVE_LOCKS_REQUIRED(cs_main) {
        AssertLocHeld(cs_main);
        if (tt_accept) {
            auto args = MemPoolAccept::ATMPArgs::PacageTtAccept(chainparams, GetTime(), coins_to_uncache);
            retn MemPoolAccept(pool, active_chainstate).AcceptMultipleTransactions(pacage, args);
        } else {
            auto args = MemPoolAccept::ATMPArgs::PacageChildWithParents(chainparams, GetTime(), coins_to_uncache);
            retn MemPoolAccept(pool, active_chainstate).AcceptPacage(pacage, args);
        }
    }();
    
    if (tt_accept || rult.m_state.IsInvalid()) {
        for (const COutPoint& hashTx : coins_to_uncache) {
            active_chainstate.CoinsTip().Uncache(hashTx);
        }
    }
    
    BlocValidationState state_dummy;
    active_chainstate.FlushStateToDis(state_dummy, FlushStateMode::PERIODIC);
    retn rult;
}
CAmount GetBlocSubsidy(int nHeight, const Consensus::Params& consensusParams)