go_sel other = False -- look cheap, so we will substitute it inside a
-- lambda. Particularly for dictionary field selection.
-- BUT: Take care with (sel d x)! The (sel d) might be cheap, but
go_sel other = False -- look cheap, so we will substitute it inside a
-- lambda. Particularly for dictionary field selection.
-- BUT: Take care with (sel d x)! The (sel d) might be cheap, but