Like I said yesterday (and was called a conspiracy theorist): The Trump campaign WANTED that to leak.
Now they can play the game of "Say what this group wants to hear directly to them, say what that group wants to hear when I talk to them later." It's obvious by the way they're dancing around the issue. They just want enough misinformation out there to where people aren't sure what the deal is.
I respectfully disagree (in a sense). What you are seeing is surrogates without a coherent message formulated by the top. They don't want misinformation out there, it's simply that Trump is incapable of crafting such a message, since he operates freeform based on his audience. What you have is Trump making offhand comments, as policy, his campaign team trying desperately to interpret these comments in real time in a non damaging way, and then surrogates interpreting those bits and pieces. It's disarray rather than a calculated strategy in my opinion, but people including the media aren't used to dealing with such an undisciplined operation.