It appears that share/bash-compltion/bash_completion performs an
`unset -f have' at the end of the script. This means that only the scripts
under /etc/bash_completion.d/ have access to `have', but said directory doesn't
even exist in our case.
That said, `have' is deprecated in favor of `_have' in
Hey!
The recent move of libsixel into mpv's propagated-inputs surfaced a bug in
our libsixel's bash completions. My bash sessions now start with an error:
-bash: have: Command not found
This was introduced in commit 43df0d83 from https://issues.guix.gnu.org/72180.
In particular, tracing with
