Surfaces can't be unset from is_reflecting

[MicahGale]

Describe the bug

This seems to be closely tied to #698. When you parse a surface, set is_reflecting=False and then export it, the output is not updated.

To Reproduce

In [1]: import montepy

In [2]: surf = montepy.surfaces.Surface("*1 P 0.0")

In [3]: surf.is_reflecting = False

In [4]: surf.is_reflecting
Out[4]: False

In [5]: surf.format_for_mcnp_input((6,2,0))
Out[5]: ['*1 P 0.0']

Version

• Version 1.0.0a3