Crash comparing designs with null data

[ekolis]

Describe the bug
Load the attached game and the game crashes.

To Reproduce
Steps to reproduce the behavior:

1. Load the attached game, turn 13, player 2.

Expected behavior
The turn loads.

Actual behavior
The game crashes with a null reference exception comparing two ship designs because their properties such as the hull are null. It seems that the design is not fully deserialized.

Screenshots
N/A

Additional context
N/A
Savegame.zip

[ekolis]

I noticed that objects such as designs and planets belonging to other players that shouldn't be visible yet are showing up in the player savegames. That might be causing this bug.