Ask to save "Untitled" on vim leave after using fff

[breenbo]

Hello,

very promising project :-)

A small annoyance I have when using fff.nvim: when I leave neovim, it ask me if I want to save "Untitled" for every use I made of fff.
If I make 3 search, it will ask me 3 times, on so on.
I don't see this "Untitled" in the buffer list.

Then I'm stuck with a little duck/goose

Thank you for your work

NVIM v0.11.2
Build type: Release
LuaJIT 2.1.1748459687

[lukasl-dev]

I have the same issue.

[zatlite]

This is resolved in #10