<!-- 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.

bool fReset,
                                                                bool fReindexChainState,
                                                                const Consensus::Params& consensus_params,
                                                                int check_blocks,
                                                                int check_level,
                                                                std::function<int64_t()> get_unix_time_seconds)
{
    auto is_coinsview_empty = [&](CChainState* chainstate) EXCLUSIVE_LOCKS_REQUIRED(::cs_main) {
        return fReset || fReindexChainState || chainstate->CoinsTip().GetBestBlock().IsNull();
    };
    LOCK(cs_main);
    for (CChainState* chainstate : chainman.GetAll()) {
        if (!is_coinsview_empty(chainstate)) {
            const CBlockIndex* tip = chainstate->m_chain.Tip();
            if (tip && tip->nTime > get_unix_time_seconds() + MAX_FUTURE_BLOCK_TIME) {
                return ChainstateLoadVerifyError::ERROR_BLOCK_FROM_FUTURE;
            }
            if (!CVerifyDB().VerifyDB(
                    *chainstate, consensus_params, chainstate->CoinsDB(),
                    check_level,
                    check_blocks)) {
                return ChainstateLoadVerifyError::ERROR_CORRUPTED_BLOCK_DB;
            }
        }
    }
    return std::nullopt;
}
}