Importing Data Doesn't Clear Previous Data

[HaykTheKhulyan]

When data is imported as a block keeper JSON, the previous data that was there isn't deleted. This means that if I export the existing data, delete a few dates, and then import the new JSON object, the old data would still be there, and the new data would simply get appended at the end.

In the picture, you can see that I had sessions 1-5, exported the data, deleted sessions 4 and 5, then imported the data. The data was simply appended to the end of the existing data. Some solutions would be to ask whether the previous data should be overwritten or to skip appending identical sessions.