zsh tab completion bug on ubuntu

Question

I'm getting a really annoying bug here:

% git s<TAB> becomes

% git   sgit  s  
send-email   -- send collection of patches as emails  
send-pack     -- push objects over git protocol to another repository  
...

It just duplicates the command. If I resize the screen, it goes back to normal: git s

How do I fix this?

Answer 1

I got it! Darn. It's my prompt

instead of:

PS1=$'%B%F{$fg[green]%}${PWD/#$HOME/~}%{$reset_color%}`git-prompt` ${VIMODE} '

I should just do

PS1=$'%{$fg_bold[green]%}${PWD/#$HOME/~}%{$reset_color%}`git-prompt` ${VIMODE} '

And everything works fine now...

Answer 2

I had this problem on macOS, and would like to share how I fixed it.

As far as I can tell, this happens when there is some problem with your custom prompt. I had:

PROMPT='%{$fg[green]%}%n@%m%{$reset_color%}:%{$fg[cyan]%}${(%):-%~}$reset_color%}$ '

And after close inspection, I noticed that the last colour change ($reset_color) was incorrectly wrapped. I then changed the prompt like so:

PROMPT='%{$fg[green]%}%n@%m%{$reset_color%}:%{$fg[cyan]%}${(%):-%~}%{$reset_color%}$ '

And I no longer had the issue.