[BUG] Syntax highlighting disappears when completion is cancelled

[musjj]

Describe the bug

A clear and concise description of what the bug is.

I can make sure:

• [x] I am using the latest version of fzf-tab
• [x] this is the minimal zshrc which can reproduce this bug
• [x] fzf-tab is loaded after compinit
• [x] fzf-tab is loaded after plugins which will wrap Tab, like junegunn/fzf/completion.zsh
• [x] fzf-tab is loaded before zsh-autosuggestions, zsh-syntax-highlighting and fast-syntax-highlighting.

To Reproduce

1. Install the fast-syntax-highlighting plugin
2. Trigger a completion
3. Press Esc to cancel the completion

Expected behavior

The syntax highlighting does not disappear

Environment:

• OS: NixOS
• zsh version: 5.9

Minimal zshrc

path+="$HOME/.zsh/plugins/fzf-tab"
fpath+="$HOME/.zsh/plugins/fzf-tab"
path+="$HOME/.zsh/plugins/fast-syntax-highlighting"
fpath+="$HOME/.zsh/plugins/fast-syntax-highlighting"

if [[ -f "$HOME/.zsh/plugins/fzf-tab/fzf-tab.plugin.zsh" ]]; then
  source "$HOME/.zsh/plugins/fzf-tab/fzf-tab.plugin.zsh"
fi

if [[ -f "$HOME/.zsh/plugins/fast-syntax-highlighting/fast-syntax-highlighting.plugin.zsh" ]]; then
  source "$HOME/.zsh/plugins/fast-syntax-highlighting/fast-syntax-highlighting.plugin.zsh"
fi

[Aloxaf]

can you make sure compinit has been called before load fzf-tab?

[boobiq]

I noticed same thing happening, I minimised .zshrc and was able to replicate it with it as well, on video I pressed ESC on 3rd completion.

This is the .zshrc I used:

autoload -Uz compinit
compinit -i

source ~/.config/zsh/fzf-tab/fzf-tab.plugin.zsh
source ~/.config/zsh/fast-syntax-highlighting/fast-syntax-highlighting.plugin.zsh
source ~/.config/zsh/zsh-autosuggestions/zsh-autosuggestions.zsh

https://github.com/user-attachments/assets/0480b272-fab4-49fc-80d2-99c7299cf23d

[Aloxaf]

I've tested this, and any completion failure causes the syntax highlighting to disappear, even without using fzf-tab.

It's a bug of fast-syntax-highlighting. zsh-syntax-highlighting works well.

I will look into it someday.