Inverted data when editing a cell in a sorted column

[maximlt]

When using header sorters and then editing the data in a tabulator widget the data gets inverted.

As an example, starting with this dataframe:

   a  b
0  1  x
1  2  y
2  3  z

Then applying a header/frontend sorter, editing a cell (here 3 to 4) and applying the header sorter again (the data should be displayed in the same order):

   a  b
0  4  z
1  2  y
2  1  x

[philippjfr]

Damn, was worried this could happen when syncing the sorters. We'll have to apply the sorters only for the current_view and not for the internal _processed attribute.