You delved[1] into the vim source and found this. You offered no solution except to use neovim, which happens to be 'supported' by the /amazing/ company you're the CEO of. You're very well practiced in false modesty and apologies but fuck you; I'm not sure you know what sincerity means.

I'm sorry if I don't think you're being sincere. Let's have a drink sometime! Let's network!

1. Anything as old as vim, continuously developed, will have any number of these frankenfunctions. They're not hard to find.