Cell selection partially broken after selecting columns when table is filtered to be empty

[seancolsen]

Steps to reproduce

1. Begin with a table that has some rows in it.
2. In the table inspector, enable the "Column" tab
3. Add a filter condition like "id" = 0 which filters the table to be empty.
4. Click a column header to select the column. (Also note that, due to Do not select columns when hovering column headers in a table with no rows #2130, hovering column headers also selects them.)
5. Remove the filter condition, showing all rows.
6. Select cells in various columns of the table. As you select cells, observe the highlighted stated of the column headers. Blue column headers indicate that the column is selected.
7. Expect the selected columns to derived from the selected cells.
8. Instead, observe that the column you selected while the table was empty is now stuck being selected regardless of which cells in the table are selected.
9. If you filter the table to be empty again, you can change this "stuck" column, but you can't remove it.
10. Refreshing the page resets the selection back to its know-good state.

@rajatvijay I want to put this on your radar since it relates to the cell selection code, which you've worked on more than anyone else.