Navi widget does not always consider the "overrides" option

[bimlas]

Describe the bug

The following setting (--preview-window=down) is ignored if I press C-g in an empty prompt, only the "fallback" Navi appear as desired.

~/.config/navi/config.yaml

finder:
  command: fzf
    overrides: --no-select-1 --preview-window=down
    overrides_var: --no-select-1 --preview-window=down

To Reproduce

1. Open an empty shell
2. Press C-g to activate the Navi widget
3. Notice the preview window is on the top (wrong behaviour)
4. Press Esc and notice the preview window on the bottom (right behaviour)

Other path:

1. Open an empty shell
2. Enter text that Navi will recognize as a command that has parameter substitution
3. Press C-g to activate the Navi widget
4. Notice the preview window is on the down for the first time (right behaviour)

Expected behavior

Show the preview window on the bottom in every cases.

Versions:

• OS: Ubuntu 20.04.2 LTS
• Shell Version: zsh 5.8 (x86_64-ubuntu-linux-gnu)
• Navi: navi 2.16.0

Additional context

Related issue: #546

[bimlas]

I think this may be because the widget overrides option --fzf-overrides:

navi/shell/navi.plugin.zsh

Line 18 in 5284ce5

replacement="$(_navi_call --print --fzf-overrides '--no-select-1')"

[bimlas]

I modified the copy of the widget code (removed --fzf-overrides '--no-select-1' from the line above), so for me this error has been fixed, but for others it is still alive.