What Dane County Circuit Judge Maryann Sumi enjoined in the spring of 2011 was the publication of Act 10, and not Act 10 itself nor any of its provisions (the "substance" of the law). Act 10 had already been enacted. The legislative process was completed. There was nothing left for the legislature to do. What remained for Act 10 was purely administrative. Bear that in mind during the inevitable storm of right-wing bullshit* should Judge Sumi decide to run against Roggensack.
* The Bradley Foundation's publishing house has started already.