Dispensers do not place command blocks when power is applied to them

I don't care if this is a duped issue, can someone please fix this?!

This was Mojang's workaround to hacked inventories spawning command blocks with /op in them.

So technically, this is "works as intended". But really, who are we kidding. Mojang could simply disallow the /op command from command blocks, and even just clear the NBT of all spawned in items from creative menu. Rework the packet system a bit to create a server-side of the creative menu, and only allow items to be added/used from the server, just like it is in survival. No more functioning inventory hacks.

I thought that command blocks were restricted from the use of the command /op and that it was set as a player only command, but that makes sense. One thing that they could do though is reimplement this feature and just disallow, like you said, the /op command from command blocks.