Costume Continuity Error

I just watched this movie on the Encore Westerns Channel. At the end of the movie, Mary Murphy is standing in the fort wearing a brown, fringed, buckskin shirt. The next scene is of the Indians riding away from the fort, and the scene then goes back to Mary and Dale Robertson, and Mary is now wearing a ruffled, white blouse. Watch for this mistake the next time you see "Sitting Bull."