[BUG] to-do entries sometimes disappear when I move new entries into the widget

I was not able to stably replicate this, but it happend 3 times between yesterday and today: I have two ToDos widgets: one with stuff I still have to do (A), and one with all the stuff I've completed (B). When I complete something, I mark is as completed, then drag it from widget A to widget B Sometimes, when I do this, an undetermined number of todo entries in the target widget (B) disappear. For instance, I just had 4 todo entries in the completed (B) widget, I moved an additional entry from widget A, and now I only have 2 entries in widget B