バグを見つけろ：Android

1import androidx.lifecycle.ViewModel
2import kotlinx.coroutines.GlobalScope
3import kotlinx.coroutines.flow.MutableStateFlow
4import kotlinx.coroutines.flow.StateFlow
5import kotlinx.coroutines.flow.asStateFlow
6import kotlinx.coroutines.launch
7
8class UserViewModel(private val repository: UserRepository) : ViewModel() {
9
10    private val _user = MutableStateFlow<User?>(null)
11    val user: StateFlow<User?> = _user.asStateFlow()
12
13    fun loadUser(id: String) {
14        GlobalScope.launch {
15            _user.value = repository.fetchUser(id)
16        }
17    }
18}