From what I am reading it is a vote to start debate not end debate because the Reid bill never was in Committee so this vote may be necessary to get it on the floor. That is a pure guess.
There are only a few species of bill that aren't subjected to agreement to take up. Conference committee stuff (which means the Senate has already taken up and debated the bill) and budgets. Other than that, every bill, whether it comes out of a Senate committee or not, is subject to debate on the question of bringing it to the Senate floor. Everything subject to debate is also subject to a vote. So, this bill is NOW at the "motion to proceed to the bill" stage, which is being debated. There was a request to vote on the motion to proceed, and the GOP objected to taking up the bill. This cloture vote is to get the bill on the floor for debate. There will be future objection and future cloture votes as the bill is debated and moves toward final passage.