fzf#run does not return selections

[3N4N]

fzf/plugin/fzf.vim

Line 928 in 4993d19

return []

Why is it returning an empty table? It should return the content of the tempfile.

In function fzf.on_exit (defined inside s:execute_term), we handle the fzf selection.

fzf/plugin/fzf.vim

Line 874 in 4993d19

let lines = s:collect(self.temps)

But it's not returned ultimately. Is that deliberate?

Update: I'm using neovim. And in a previous commit, the README had this to say:

fzf/README.md

Lines 327 to 328 in 622e69f

	*However on Neovim `fzf#run` is asynchronous and does not return values so you
	should use `sink` or `sink+` to process the output from fzf.*

But it's erased in currrent master. Presumably because that shortcoming was handled. But it's not handled. I get an empty table for the following command.

:let xxx = fzf#run({'source': 'ls'})

[3N4N]

Issue #2916 is where this discussion was held.