4.7 first issue kaervek [Fixed]

I love the drana kaervek combo to reach summon objectives like summon three zombies from the trial of ambition event.
First send some creatures to the graveyard than return the first 2/2 or lower creature by drana at start of attack while kaervek destroys it right after summoned.
With 4.7 the summoned creature is destroyed more than once and than stays on the battlefield with its original p/t. A small video and two battle log Screenshots are available.