'Return corners to their original positions.
Examples
>>> from sympy.combinatorics.polyhedron import tetrahedron as T
>>> T.corners
(0, 1, 2, 3)
>>> T.rotate(0)
>>> T.corners
(0, 2, 3, 1)
>>> T.reset()
>>> T.corners
(0, 1, 2, 3)'

def reset(self):

    self._corners = self.args[0]
