ZSH completion removes the argument with compadd -U - zsh

Question

I'm trying to add a completion to a custom vs function which basically open the first filename matching the argument.
OPTIONAL (If you want more information about this function you can find my medium post here => https://medium.com/#victor.boissiere/how-to-quickly-open-files-with-your-editor-1a51b3fe21bf)
In my current folder I have the following:
./example.sh
./custom/directory.sh
./custom/example.sh
Behavior
vs direct<TAB> => completes to custom/directory.sh SUCCESS
vs example<TAB> => vs
Why does it removes the argument and does not let me choose between example.sh and custom/example.sh ?
Code
_vs() {
local curcontext="$curcontext" state line expl
_arguments -C \
'*:: :->open_files'
case "$state" in
open_files)
local file=${words[CURRENT]}
compadd -U - `find . -type f -ipath "*$file*" | sed "s|^\./||"`
;;
esac
return 0
}
compdef _vs vs

Answer 1

I just found the solution thanks to this post => https://superuser.com/questions/1264778/changing-to-a-directory-found-somewhere-in-the-tree-hierarchy/1278919#1278919
I just needed to add compstate[insert]=menu # no expand
Solution
_vs() {
local curcontext="$curcontext" state line expl
_arguments -C \
'*:: :->open_files'
case "$state" in
open_files)
local file=${words[CURRENT]}
compadd -U - `find . -type f -ipath "*$file*" | sed "s|^\./||"`
compstate[insert]=menu # add this
;;
esac
return 0
}
compdef _vs vs