[2021] How exactly does the auto job work in the beta?

So from what I've gathered, if the number of jobs available fall under a certain number, create x many more jobs. If I'm right, that makes no sense, because that would just make infinite jobs, which is kinda what happened to me when I tried setting up my first job.

I would recommend it being changed to something like "input the X amount of things you want, and if the number of these things falls below X, make more until you have X amount"

So like if you set bricks to 45, it will make bricks until you have 45, and if it falls below 45, they'll make more.

Thanks in advance, sorry if I'm dumb and am just doing it all wrong.