[NTG-context] vertical space with \reference

Context puts extra vertical between “Line one" and “Line two” in this example. Should it do that? \starttext Line one. \reference[refs]{}% Line two. \stoptext I ask because pandoc inserts \reference[refs]{}% at the beginning of its bibliography section; that produces extra vertical space. I do not think this command should produce any space at all, but perhaps I am mistaken. Thank you!