So I noticed my slime farm was not producing any slimes on my multiplayer server. I then found 3 hordes of zombies that were all holding eggs. Overall, I probably killed 100 zombies holding eggs while exploring a mine shaft.  It looks like the chickens stay around as I killed about 20 chickens and the zombies pick up the eggs. Looks like it may be a recession back to a previous bug report here: MC-42174