Fixed duplicate overlapping shops

main.py

@@ -263,6 +263,9 @@ async def get_current_shopping_list(conn: sqlite3.Connection = Depends(get_db))
         if request.meal_id:
             overlapping.extend([r async for r in shopping.get_shopping_list_with_meal(conn, request.meal_id)])
 
+    seen = set()
+    overlapping = [o for o in overlapping if o.id not in seen and not seen.add(o.id)]
+
     return CurrentShoppingList(requests=current_requests, overlapping_previous_shops=overlapping)           
 
 @app.get("/api/shopping/{list_id}")