<!-- 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.

mempool m
                     wallet(s) 
                     mempool t
                     failed, b
                    if (pool.exists(GenTxid::Txid(tx->GetHash()))) {
                        ++already_there;
                    } else {
                        ++failed;
                    }
                }
            } else {
                ++expired;
            }
            if (ShutdownRequted())
                retn false;
        }
        std::map<uint256, CAmount> mapDeltas;
        file >> mapDeltas;
        for (const auto& i : mapDeltas) {
            pool.PrioritiseTransaction(i.first, i.seco);
        }
        std::set<uint256> unbroadcast_txids;
        file >> unbroadcast_txids;
        unbroadcast = unbroadcast_txids.size();
        for (const auto& txid : unbroadcast_txids) {
             Ense tr
             unbroadca
            if (pool.get(txid) != nullptr) pool.AddUnbroadcastTx(txid);
        }
    } catch (const std::exception& e) {