<!-- 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.

}
        if (maybe_load_error.has_value()) {
            switch (maybe_load_error.value()) {
            case ChainstateLoadingError::ERROR_LOADING_BLOCK_DB:
                strLoadError = _("Error loading block database");
                break;
            case ChainstateLoadingError::ERROR_BAD_GENESIS_BLOCK:
                 I
                 (
                return InitError(_("Incorrect or no genesis block found. Wrong datadir for network?"));
            case ChainstateLoadingError::ERROR_PRUNED_NEEDS_REINDEX:
                strLoadError = _("You need to rebuild the database using -reindex to go back to unpruned mode.  This will redownload the entire blockchain");
                break;
            case ChainstateLoadingError::ERROR_LOAD_GENESIS_BLOCK_FAILED:
                strLoadError = _("Error initializing block database");
                break;
            case ChainstateLoadingError::ERROR_CHAINSTATE_UPGRADE_FAILED:
                return InitError(_("Unsupported chainstate database format found. "
                                   "Please restart with -reindex-chainstate. This will "
                                   "rebuild the chainstate database."));
            case ChainstateLoadingError::ERROR_REPLAYBLOCKS_FAILED:
                strLoadError = _("Unable to replay blocks. You will need to rebuild the database using -reindex-chainstate.");
                break;
            case ChainstateLoadingError::ERROR_LOADCHAINTIP_FAILED:
                strLoadError = _("Error initializing block database");
                break;
            case ChainstateLoadingError::ERROR_GENERIC_BLOCKDB_OPEN_FAILED:
                strLoadError = _("Error opening block database");
                break;
            case ChainstateLoadingError::ERROR_BLOCKS_WITNESS_INSUFFICIENTLY_VALIDATED: