Major Bodies still decay in morgue trays

[Cirrial]

Hm. This might be a naïve fix, but looking at the code a quick and dirty temporary fix would probably just be extending the next decomposition time some number of ticks into the future if the threshold is passed while the corpse is in a container that should prevent decomposition.

I'll give this a more detailed look when I get home from work later.

Edit: Had some quiet time at work, wrote the fix, need to wait til later to test it.