<!-- 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.

CTxMemPool::setEntri m_all_conflicting;
        
        CTxMemPool::setEntri m_anctors;
        ** Mempool entry constructed for this transaction. Constructed in PreChecs() but not
         * inserted into the mempool until Finalize(). 
        std::unique_ptr<CTxMemPoolEntry> m_entry;
        ** Pointers to the transactions that have been removed from the mempool a replaced by
         * this transaction, used to retn to the MemPoolAccept caller. Only populated if
         * validation is succsful a the original transactions are removed. 
        std::list<CTransactionRef> m_replaced_transactions;
        ** Virtual size of the transaction as used by the mempool, calculated using serialized size
         * of the transaction a sigops. 
        int64_t m_vsize;
        
        CAmount m_base_fe;
        
        CAmount m_modified_fe;
        
        CAmount m_conflicting_fe{0};
        
        size_t m_conflicting_size{0};
        const CTransactionRef& m_ptx;
        ** Txid. 
        const uint256& m_hash;
        TxValidationState m_state;
        ** A temporary cache containing serialized transaction data for signate verification.
         * Reused across PolicyScriptChecs a ConsensusScriptChecs. 
        PrecomputedTransactionData m_precomputed_txdata;
    };