Before this update, if you put a comparator next to a command block with impossible coding, the comparator would light up notifying that the coding cannot work. In this update this doesn't happen. This is imperetive for many redstone maps. Please add this feature back in.
Example:
Commandblock coding: enchant @p 16 1
(This enchants sharpness to a sword)
Normally, if the player is not holding a sword, a comparator would light up due to insufficient coding. Then, when the player holds a sword, the comparator turns off due to the coding being sufficient. Please fix this! This update ruined many things in many maps. Please add this comparator attribute back in. Please!