Compare query when updating TaskListViewModel

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

@@ -24,6 +24,7 @@ import com.todoroo.astrid.core.SortHelper;
 import com.todoroo.astrid.dao.Database;
 import com.todoroo.astrid.data.Task;
 import javax.inject.Inject;
+import org.jetbrains.annotations.NotNull;
 import org.tasks.data.CaldavTask;
 import org.tasks.data.GoogleTask;
 import org.tasks.data.LimitOffsetDataSource;
@@ -40,8 +41,10 @@ public class TaskListViewModel extends ViewModel {
   private LiveData<PagedList<Task>> tasks;
   private Filter filter;
 
-  public LiveData<PagedList<Task>> getTasks(Filter filter, Property<?>[] properties) {
-    if (tasks == null || !filter.equals(this.filter)) {
+  public LiveData<PagedList<Task>> getTasks(@NotNull Filter filter, Property<?>[] properties) {
+    if (tasks == null
+        || !filter.equals(this.filter)
+        || !filter.getSqlQuery().equals(this.filter.getSqlQuery())) {
       this.filter = filter;
       tasks = getLiveData(properties);
     }