Fix to for erroneous task/history stack growth when single-stepping through error.

src/MATLAB/+UI/ResegmentInterface.m

@@ -67,7 +67,10 @@ function bFinished = runReseg(hToolbar)
         UI.DrawCells();
         
         if ( bErr )
+            if ( ~bResegPaused )
                 pauseReseg(hToolbar);
+            end
+            
             return;
         end