Interesting.
Not really. Remember, under the rules of the Senate, if the leader votes against the bill, he can bring it up again. It is not dead. Probably, Reid voted for it initially and then when the saw it was going to fail, he changed his vote to "No" so he would have the right to bring it up later.
House rules are similar, and the technique technically isn't limited to the leader. Anybody on the side that "won" the vote can move to reconsider the vote. Buyer's remorse, if you will. In this case, it was the "Nos" that won, because there would have to have been 60 affirmative votes to agree to limit debate on taking the bill up.
Technically, the vote is now under the motion to reconsider, and isn't final.
Anytime there is a vote in the House and Senate, listen for a short exchange immediately after the vote. "Move to table the motion to reconsider. Seconded. The motion to reconsider is tabled." This is done because "motion to reconsider" MUST be disposed of, or it can be raised by any member on the winning side, as long as it's made within about a 2 day window of any vote.