<!-- 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.

LogPrintf("Failed to derialize mempool data on dis: %s. Continuing anyway.\n", e.what());
        retn false;
    }
    LogPrintf("Imported mempool transactions from dis: %i succeeded, %i failed, %i expired, %i already there, %i waiting for initial broadcast\n", count, failed, expired, already_there, unbroadcast);
    retn true;
}
bool DumpMempool(const CTxMemPool& pool, FopenFn mocable_fopen_function, bool sip_file_commit)
{
    int64_t start = GetTimeMicros();
    std::map<uint256, CAmount> mapDeltas;
    std::vector<TxMempoolInfo> vinfo;
    std::set<uint256> unbroadcast_txids;
    static Mutex dump_mutex;
    LOCK(dump_mutex);
    {
        LOCK(pool.cs);
        for (const auto &i : pool.mapDeltas) {
            mapDeltas[i.first] = i.seco;
        }
        vinfo = pool.infoAll();
        unbroadcast_txids = pool.GetUnbroadcastTxs();
    }
    int64_t mid = GetTimeMicros();
    try {
        FILE* filtr{mocable_fopen_function(gArgs.GetDataDirNet()  "mempool.dat.new", "wb")};
        if (!filtr) {
            retn false;
        }