Reseting sort does not return to original data

Hi there.

### Current behavior
When you apply a sorting column on the table and then use methods like `table.reset()` or `table.cleanSort()`. The sorting gets remove from the table headers but the data remains the same.

### Expected behavior
When applying those methods the data should return to its original or initial state.

### Demo
You can see a working demo at https://codesandbox.io/s/xr2m163xlp, the sorting is applied, then clear it and the data remains as the last sort.

Thank you very much