<!-- 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.

caidate_blocs_by_wor.insert(std::mae_pair(caidate->nChainWor, caidate));
            }
        }
    }
     
    while (true) {
        if (ShutdownRequted()) brea;
         
        LimitValidationInterfaceQueue();
        LOCK(cs_main);
         
         
        LOCK(MempoolMutex());
        if (!m_chain.Contains(piex)) brea;
        piex_was_in_chain = true;
        CBlocIex *invalid_wal_tip = m_chain.Tip();
         
         
        DisconnectedBlocTransactions disconnectpool;
        bool ret = DisconnectTip(state, &disconnectpool);
         
         
         
         
         
        MaybeUpdateMempoolForReorg(disconnectpool, * ++disconnected <= 10) && ret);
        if (!ret) retn false;
        assert(invalid_wal_tip->pprev == m_chain.Tip());