[MC-32972] /summon accepts arguments that it will ignore

/summon "allows" you to have data specified without a position, but does not use that data.

/summon Creeper {powered:1}

will not work, while

/summon Creeper ~ ~ ~ {powered:1}

will work.

(Assuming I didn't misspell the tag; however I have tested it with less obvious tags and it is this case)

Comments 6

Confirmed.

/summon Creeper {whatever:5}

summons a creeper at ~ ~ ~, but

/summon Creeper {whatever i put here:5}

throws {whatever is not a valid number

Tip: It's /summon Creeper (capital C) , not /summon creeper

That's true.
Another interesting thing:

/summon Creeper ~ {Tag:Value}

also doesn't work.

Still a concern in 1.7.4/1.7.5 and 1.8

still in 15w45a and 1.8.8

Is this still an issue in the most recent versions (i.e. 1.10.2, or 16w42a) of Minecraft?