I think I understood it. So, it seems that you can fetch work but then if you stop the execution of the program that work will be lost. is that it?
What will be the best way to stop LBC in a graceful manner? Or instead would be better to use  --time ?
.. and if there is no way to stop it gracefully you can just stop it and then process the blocks interval you were working with --pages  -, right?

thanks