Calling `*txoutset` calls in the console has been broken since #19056. The addition of the `RpcInterruptionPoint()` calls means that any user running the GUI without passing `-server`, will just see ["Shutting down"](https://github.com/bitcoin/bitcoin/blob/b33136b6ba9887f7db651c4c5264ca7f2f601df7/src/rpc/server.cpp#L325) printed to the console:

![console](https://user-images.githubusercontent.com/863730/84460760-55599a80-ac9d-11ea-8720-a718edde75dd.png)

cc @MarcoFalke 
RPCExamples{
                    HelpExampleCli("getblockstats", R"('"00000000c937983704a73af28acdec37b049d214adbda81d7e2a3dd146f6ed09"' '["minfeerate","avgfeerate"]')") +
                    HelpExampleCli("getblockstats", R"(1000 '["minfeerate","avgfeerate"]')") +
                    HelpExampleRpc("getblockstats", R"("00000000c937983704a73af28acdec37b049d214adbda81d7e2a3dd146f6ed09", ["minfeerate","avgfeerate"])") +
                    HelpExampleRpc("getblockstats", R"(1000, ["minfeerate","avgfeerate"])")
                },
    }.Check(request);
    LOCK(cs_main);
    CBlockIndex* pindex;
    if (request.params[0].isNum()) {
        const int height = request.params[0].get_int();
        const int current_tip = ::ChainActive().Height();
        if (height < 0) {
            throw JSONRPCError(RPC_INVALID_PARAMETER, strprintf("Target block height %d is negative", height));
        }
        if (height > current_tip) {
            throw JSONRPCError(RPC_INVALID_PARAMETER, strprintf("Target block height %d after current tip %d", height, current_tip));
        }
        pindex = ::ChainActive()[height];
    } else {
        const uint256 hash(ParseHashV(request.params[0], "hash_or_height"));
        pindex = LookupBlockIndex(hash);
        if (!pindex) {
            throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Block not found");
        }
        if (!::ChainActive().Contains(pindex)) {
            throw JSONRPCError(RPC_INVALID_PARAMETER, strprintf("Block is not in chain %s", Params().NetworkIDString()));
        }
    }
    CHECK_NONFATAL(pindex != nullptr);