[Discover Tab] Filter is not correctly reflected in the records list until we refresh the page

[mastropi]

The following images illustrate the problem:

1. We apply a filter on the line_number field, selecting all the records where the field is empty --> 3 records are selected (OK)
   

2. We apply the negative filter to select all the records where the field is NOT empty --> the 3 records shown above with empty line_number are still shown at the top (WRONG)

3. We refresh the page --> now the 3 records with empty line_number are replaced with the correct records that should have been shown in step (2) (OK)