From the comment in the LP code, I'd say it's fairly obviously deliberate. On the other hand, being able to remove just source can be a handy (if hackish) feature. I wouldn't be against just dropping the option and pretending we can't do that, though.
From the comment in the LP code, I'd say it's fairly obviously deliberate. On the other hand, being able to remove just source can be a handy (if hackish) feature. I wouldn't be against just dropping the option and pretending we can't do that, though.