In 1994, when the arizona supreme court decided the case of hernandez v. arizona board of regents, it found a duty of care to avoid providing alcohol to underage consumers. if in 2017 a plaintiff from flagstaff, arizona brings a lawsuit in an arizona state trial court against a student group at an arizona university for providing alcohol to members under the legal drinking age, will the hernandez v. arizona board of regents case serve as precedent (assuming no court has overturned it)?