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 
{
            RPCHelpMan{"getchaintxstats",
                "\nCompute statistics about the total number and rate of transactions in the chain.\n",
                {
                    {"nblocks", RPCArg::Type::NUM,  "one month", "Size of the window in number of blocks"},
                    {"blockhash", RPCArg::Type::STR_HEX,  "chain tip", "The hash of the block that ends the window."},
                },
                RPCResult{
                    RPCResult::Type::OBJ, "", "",
                    {
                        {RPCResult::Type::NUM_TIME, "time", "The timestamp for the final block in the window, expressed in " + UNIX_EPOCH_TIME},
                        {RPCResult::Type::NUM, "txcount", "The total number of transactions in the chain up to that point"},
                        {RPCResult::Type::STR_HEX, "window_final_block_hash", "The hash of the final block in the window"},
                        {RPCResult::Type::NUM, "window_final_block_height", "The height of the final block in the window."},
                        {RPCResult::Type::NUM, "window_block_count", "Size of the window in number of blocks"},
                        {RPCResult::Type::NUM, "window_tx_count", "The number of transactions in the window. Only returned if \"window_block_count\" is > 0"},
                        {RPCResult::Type::NUM, "window_interval", "The elapsed time in the window in seconds. Only returned if \"window_block_count\" is > 0"},
                        {RPCResult::Type::NUM, "txrate", "The average rate of transactions per second in the window. Only returned if \"window_interval\" is > 0"},
                    }},
                RPCExamples{
                    HelpExampleCli("getchaintxstats", "")
            + HelpExampleRpc("getchaintxstats", "2016")