[2019] Mutated colours all vanished after update

The current plan is that we'll be adding an admin command that can be used to reapply the correct colors on tamed dinos (So that in the future any changes to the color definitions array either by us or by mods will be effectively non-destructive).
In addition, because we can't recover the colors lost from this occurrence (the only factual memory of what those colors were is in your head), those colors that were lost will get re-rolled for new mutation colors.
I don't have an ETA on when that will be available, but it's in the works already.