ENH: Return same polydata and print message
ENH: Return same polydata and print message

If the array NaNCases is not found, return the same polydata because there are no fibers to clean

nintendops/DTIFiberTractStatistics,nintendops/DTIFiberTractStatistics,NIRALUser/DTIFiberTractStatistics,NIRALUser/DTIFiberTractStatistics,NIRALUser/DTIFiberTractStatistics,nintendops/DTIFiberTractStatistics