@ucbalumnus: Pretty common, I would reckon.
Only some professional majors would have a rigid 7/8 semester sequence, I’d think, and the FL publics should be offering a fair number of the more basic classes during the summer (so it would make sense to fulfill the summer requirement the first summer). And most of these FL publics are big and offer lots of classes all semesters. Certainly, pretty much none of the liberal arts majors (that typically require only 1/4-1/3 of all total classes) would require a rigid 7/8 semester sequence.