[BUG] Multi-page next button conditional without form conditional logic

I've found that the next button conditional logic will not work without the form conditional logic turned on. I'm just assuming this is a bug. Without the next button logic on, form conditional logic off, Firebug reported "gf_apply_rules is not defined". So I did a test, and it turns out that when you're only using the next button logic, the "conditional_logic.js" is not included in the HEAD as it should be. Turning on form conditional logic fixes this with ease, but shouldn't be necessary, right? I mean, you should be able to have page logic sans form logic.