.chezmoiscripts/once.sh keeps reappearing

[j-lakeman]

Setup:

.chezmoiscripts/run_once.sh.tmpl:

#!{{ lookPath "sh" }}

{{- if not (eq (lookPath "fish") (env "SHELL")) }}
{{-     if lookPath "chsh" }}
chsh -s {{ lookPath "fish" }}
{{-         if .superuserAccess }}
{{              .superuserAccess }} chsh -s {{ lookPath "fish" }}
{{-         end }}
{{-     else }}
    {{- /* todo */}}
{{-     end }}
{{- end }}

{{- if lookPath "brew" }}
brew bundle install
{{- end }}

I'd like to use this script to set up my env e.g. shell thus it only needs to run once.
Upon applying the script finishes successfully yet it immediately reappears as R .chezmoiscripts/once.sh.
chezmoi diff shows

#!/bin/sh

brew bundle install

Help would be much appreciated!
Thanks for this awesome application!

[twpayne]

The name needs to be longer. It needs to start with run_once_. Notice the extra _ after once.

[j-lakeman]

Missed that trailing underscore. Cheers!