In 14w33c, i tried to give myself a command block in creative, the normal way,
/ give <username> 137. Where errors or successes would appear in chat, it said "there is no such item with ID minecraft:137" i then tested this out with other items, typing /give <username> 1, same problem occurs. This is the same for every item i have checked...

I don't know if this bug has occured with anyone else, but i hope it is addressed in the next snapshot.