purejosh

I can't imagine why this is an issue. Seems as intended to me. Adding logic to restrict it to a certain space would only add processing overhead to the block, and we're working to optimize Minecraft, not complicate it. 

This NEEDS to be fixed. I've got 10+ command blocks on a clock that are working to kill the mobs that are holding eggs. It's really quite unacceptable. 

Need more info. Please provide screenshots of the environment that the zombie is being kept in. Also, try tossing a sword to an unarmed zombie and keeping that one, I don't nametag my zombies when I use them in farms. I just use a zombie that holds an item, as that marks them persistent. 

This is an intended feature. Not a bug. The solution is to not use the obsidian platform as an area to put your stuff.