A suggestion for 'Show Problem'

When I click to show the problems, the plugin always create a new file. For example, the question[1]Two Sum, when I showed the problem firstly, it created a new file named two-sum.py. After that, I showed the problem again, it created a new file two-sum.0.py rather than opening the two-sum.py. In my opinion, the plugin open the file which has been created is more reasonable.