Fixed a bug in how task edit fragment handles rotation, incidentally solving a couple crashes

astrid/src/com/todoroo/astrid/activity/TaskEditFragment.java

@@ -893,11 +893,13 @@ ViewPager.OnPageChangeListener, EditNoteActivity.UpdatesChangedListener {
                     R.anim.slide_right_in, R.anim.slide_right_out);
         }
 
+        if (getActivity() instanceof TaskListActivity) {
             if (title.getText().length() == 0 && isNewTask
                     && model != null && model.isSaved()) {
                 taskService.delete(model);
             }
         }
+    }
 
     /*
      * ======================================================================