CurrentValueSubjectは CoWとかしないんだね。let subject1 = CurrentValueSubject<Int, NSError>(1) let subject2 = subject1 subject1.value = 5 subject2.value == 5 // true (edited)CurrentValueSubjectは CoWとかしないんだね。let subject1 = CurrentValueSubject<Int, NSError>(1) let subject2 = subject1 subject1.value = 5 subject2.value == 5 // true (edited)