Entities falling on a block do no longer create a block stained block.

This seems to be a bug in either Forge or Minecraft. We use forge events to check what the reason is a mob has died. Whenever a mob dies because of fall damage (what we need to create a blood stained block), the type on the client side is given as "fall damage", but on the server side it always seems to return "generic". I don't think this is intended behaviour.
If its a forge bug it should be resolved soon, if its a minecraft bug however I fear we'll have to temporarily change the code to allow any type of death to create a blood stained block.