title: Active tab in Visual Studio moves left?
body: <p>In Visual Studio 2015 Pro, all of a sudden whichever editor window I have active, its tab moves to the leftmost position. </p>
  
  <p>It must have been some key combination I hit and I can't figure out how to turn it off. I have power tools installed but haven't seen this as an option before. I just mention it because I know it has options for coloring/sorting tabs. </p>
  
  <p>Any help is greatly appreciated.</p>