I was playing Priest in a Priest-Rogue game - the Rogue had an empty board, and I had an unbuffed copy of Zerek in play; Rogue played a mage secret and passed the turn.
I attempted to buff Zerek with Extra Arms and triggered Spellbender; the token received +2/+2 as expected, but Zerek was also buffed to indicate he would trigger his deathrattle. Ultimately, he died and did not resummon (as should be expected) despite the visual indicator and tooltip to the contrary.
Game was played on Windows 10.