                      SelectFilter.refresh_icons(field_id);
                  }
              };
              addEvent(choose_all, 'click', function(e) { move_selection(e, this, SelectBox.move_all, field_id + '_from', field_id + '_to'); });
              addEvent(add_link, 'click', function(e) { move_selection(e, this, SelectBox.move, field_id + '_from', field_id + '_to'); });
              addEvent(remove_link, 'click', function(e) { move_selection(e, this, SelectBox.move, field_id + '_to', field_id + '_from'); });
 
</s> remove             addEvent(choose_all, 'click', function(e) { move_selection(this, SelectBox.move_all, field_id + '_from', field_id + '_to'); });
            addEvent(add_link, 'click', function(e) { move_selection(this, SelectBox.move, field_id + '_from', field_id + '_to'); });
            addEvent(remove_link, 'click', function(e) { move_selection(this, SelectBox.move, field_id + '_to', field_id + '_from'); });
            addEvent(clear_all, 'click', function(e) { move_selection(this, SelectBox.move_all, field_id + '_to', field_id + '_from'); });
 </s> add             addEvent(choose_all, 'click', function(e) { move_selection(e, this, SelectBox.move_all, field_id + '_from', field_id + '_to'); });
            addEvent(add_link, 'click', function(e) { move_selection(e, this, SelectBox.move, field_id + '_from', field_id + '_to'); });
            addEvent(remove_link, 'click', function(e) { move_selection(e, this, SelectBox.move, field_id + '_to', field_id + '_from'); });
            addEvent(clear_all, 'click', function(e) { move_selection(e, this, SelectBox.move_all, field_id + '_to', field_id + '_from'); }); </s> remove             var move_selection = function(elem, move_func, from, to) {
 </s> add             var move_selection = function(e, elem, move_func, from, to) {
                e.preventDefault();
                      SelectFilter.refresh_icons(field_id);
                  }
                e.preventDefault();
              };
              addEvent(choose_all, 'click', function(e) { move_selection(e, this, SelectBox.move_all, field_id + '_from', field_id + '_to'); });
              addEvent(add_link, 'click', function(e) { move_selection(e, this, SelectBox.move, field_id + '_from', field_id + '_to'); });
              addEvent(remove_link, 'click', function(e) { move_selection(e, this, SelectBox.move, field_id + '_to', field_id + '_from'); });
keep add keep keep keep keep
 Fixed #26612 -- Fixed SelectFilter2 buttons changing URL. 
django/contrib/admin/static/admin/js/SelectFilter2.js