bug#23006: 25.0.92; Loading Tramp breaks pcomplete in eshell-mode

[Stefan Monnier]

> I'm speaking only about two different cases. File name completion
> started by user activity, like hitting TAB. And file name completion
> started in the background, for example via idle timers.

Also known as: the case where non-essential is nil and the case where
it's non-nil.

> If I have said "three" somewhere else, it was a mistake.

You said:

    One single value of non-essential doesn't fit this bill.


-- Stefan