Two-sided property of materials saved to User Library not preserved

Materials with the two-sided property enabled do not retain this setting when saved to the user library, reverting to one-sided whenever applied to objects, making it impossible to save a material as two-sided and requiring this setting to be re-enabled whenever the material is needed.

All other material settings are preserved when saved to the User library.

1. Create a new material with the Two-sided property enabled
2. Save material to user library
3. Drag and drop the material from the user library into the scene
4. In Material settings, navigate to the Two-sided property, which should be disabled