Video: Umpire signals wide, only to give batsman out instantaneous
Way back in 2001, a very funny incident happened in the game of cricket. Shahid Afridi bowled a ball a way outside the off-stump which Kumar Sangakkara edged to the wicket-keeper. Initially, the umpire declared it as a wide but instantly changed his decision to send the batsman back to the pavilion.
https://www.youtube.com/watch?v=0S5ZaZweaaQ