The Neovim development path -- by design -- had no chance of upstream-downstream merges. It is a departure, not a premature mistake, but a decision. The code

The Neovim development path -- by design -- had no chance of upstream-downstream merges. It is a departure, not a premature mistake, but a decision. The code had to be re-factored to let the community in -- the Vim code is a horrific legacy cruft-fest that terrifies even the most brave developers. But it is a historical working one, which is hard to argue with -- look at those styling commits, they are wonderfully sane.