Force sort order on recently modified filter

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

@@ -321,7 +321,12 @@ public final class TaskListFragment extends InjectingFragment
       hidden.setChecked(preferences.getBoolean(R.string.p_show_hidden_tasks, false));
       completed.setChecked(preferences.getBoolean(R.string.p_show_completed_tasks, false));
     }
-    if (taskAdapter.supportsManualSorting()) {
+    MenuItem sortMenu = menu.findItem(R.id.menu_sort);
+    if (!filter.supportsSorting()) {
+      sortMenu.setEnabled(false);
+      sortMenu.setShowAsAction(MenuItem.SHOW_AS_ACTION_NEVER);
+    }
+    if (!filter.supportSubtasks() || taskAdapter.supportsManualSorting()) {
       menu.findItem(R.id.menu_collapse_subtasks).setVisible(false);
       menu.findItem(R.id.menu_expand_subtasks).setVisible(false);
     }

app/src/main/java/com/todoroo/astrid/api/Filter.java

@@ -189,6 +189,14 @@ public class Filter extends FilterListItem {
     return true;
   }
 
+  public boolean supportSubtasks() {
+    return true;
+  }
+
+  public boolean supportsSorting() {
+    return true;
+  }
+
   public boolean hasMenu() {
     return getMenu() != 0;
   }

app/src/main/java/org/tasks/filters/RecentlyModifiedFilter.java

@@ -3,8 +3,10 @@ package org.tasks.filters;
 import android.os.Parcel;
 import android.os.Parcelable;
 import com.todoroo.andlib.sql.Criterion;
+import com.todoroo.andlib.sql.Order;
 import com.todoroo.andlib.sql.QueryTemplate;
 import com.todoroo.astrid.api.Filter;
+import com.todoroo.astrid.core.SortHelper;
 import com.todoroo.astrid.data.Task;
 import org.tasks.time.DateTime;
 
@@ -40,11 +42,22 @@ public class RecentlyModifiedFilter extends Filter {
             Criterion.and(
                 Task.DELETION_DATE.lte(0),
                 Task.MODIFICATION_DATE.gt(
-                    new DateTime().minusDays(1).startOfMinute().getMillis())));
+                    new DateTime().minusDays(1).startOfMinute().getMillis())))
+        .orderBy(Order.desc(Task.MODIFICATION_DATE));
   }
 
   @Override
   public boolean supportsHiddenTasks() {
     return false;
   }
+
+  @Override
+  public boolean supportSubtasks() {
+    return false;
+  }
+
+  @Override
+  public boolean supportsSorting() {
+    return false;
+  }
 }

app/src/main/java/org/tasks/ui/TaskListViewModel.java

@@ -107,7 +107,8 @@ public class TaskListViewModel extends ViewModel {
       boolean includeCaldavSubtasks) {
     List<Field> fields = newArrayList(TASKS, GTASK, CALDAV, GEOFENCE, PLACE);
 
-    if ((includeGoogleTaskSubtasks || includeCaldavSubtasks)
+    if (filter.supportSubtasks()
+        && (includeGoogleTaskSubtasks || includeCaldavSubtasks)
         && !(preferences.isManualSort() && filter.supportsManualSort())) {
       String tagQuery =
           Query.select(field("group_concat(distinct(tag_uid))"))
@@ -242,7 +243,8 @@ public class TaskListViewModel extends ViewModel {
               + filter.getSqlQuery();
 
       String query =
-              SortHelper.adjustQueryForFlagsAndSort(preferences, joinedQuery, preferences.getSortMode());
+          SortHelper.adjustQueryForFlagsAndSort(
+              preferences, joinedQuery, preferences.getSortMode());
 
       String groupedQuery =
               query.contains("ORDER BY")