Fix crash when collapsing/expanding all

app/src/main/java/com/todoroo/astrid/activity/TaskListFragment.kt

@@ -386,12 +386,12 @@ class TaskListFragment : InjectingFragment(), OnRefreshListener, Toolbar.OnMenuI
                 true
             }
             R.id.menu_expand_subtasks -> {
-                taskDao.setCollapsed(taskListViewModel.value, false)
+                taskDao.setCollapsed(preferences, filter, false)
                 localBroadcastManager.broadcastRefresh()
                 true
             }
             R.id.menu_collapse_subtasks -> {
-                taskDao.setCollapsed(taskListViewModel.value, true)
+                taskDao.setCollapsed(preferences, filter, true)
                 localBroadcastManager.broadcastRefresh()
                 true
             }

app/src/main/java/com/todoroo/astrid/dao/TaskDao.kt

@@ -210,8 +210,11 @@ abstract class TaskDao(private val database: Database) {
     abstract fun setCollapsed(id: Long, collapsed: Boolean)
 
     @Transaction
-    open fun setCollapsed(tasks: List<TaskContainer>, collapsed: Boolean) {
-        DbUtils.batch(tasks.filter(TaskContainer::hasChildren).map(TaskContainer::getId)) {
+    open fun setCollapsed(preferences: Preferences, filter: Filter, collapsed: Boolean) {
+        val tasks = fetchTasks(preferences, filter)
+                .filter(TaskContainer::hasChildren)
+                .map(TaskContainer::getId)
+        DbUtils.batch(tasks) {
             collapse(it, collapsed)
         }
     }