Fixed now 
I added a few extra unicode symbols for replacements which I think is fair. We can add more as we go on if we wish.
I’m not sure that’s the correct thing to do. I understand getting skin tones in would be a great feature to add, but it involves making sure all our emoji sets have them all and that’s more work than this feature needed. Adding extra code to remove the default handling seems odd to me.
Note those skin tone blocks that are showing up are what happened before I implemented this feature – that did not change.