On August 24, a lower state court in Tulsa, Oklahoma, invalidated an initiative petition that would have converted Tulsa city elections from partisan elections to non-partisan elections. See this story. The judge ruled that the required number of signatures is closer to 19,000 than 6,000. The confusion arises from determining which election turnout figure to use to determine the number of signatures needed.
The article does not say what election was used and what should have been used. Also there should be some sort of penalty on the clerks office.