should git maintenance prefetch be taught to honor remote.fetch refspec?

I've recently setup git maintenance and noticed prefetch task fetches ALL remote refs (well not tags) and does not honor remote fetch config settings.

Details:

# narrowed set of remote refs produced by `git fetch --all --prune` $ git show-ref | grep "refs/remotes/" | wc -l 81

# git maintenance prefetch refs $ git show-ref | grep "refs/prefetch/" | wc -l 262

# git worktree with 7 remotes $ git remote | wc -l 7

# some remotes configured to fetch narrowed set of remote refs $ git config --local --list | grep ".fetch=" | wc -l 11

# concrete example of remote fetch config $ git config --local --list | grep "stable.fetch=" remote.stable.fetch=+refs/heads/linux-4.14.y:refs/remotes/stable/linux-4.14.y remote.stable.fetch=+refs/heads/linux-5.4.y:refs/remotes/stable/linux-5.4.y

Should git maintenance prefetch task be taught to honor remote fetch config settings?

Something equivalent to:

git config --local --list \
| sed -ne '/remote\..*fetch=/{s#refs/remotes/#refs/prefetch/#;s#^remote\.\([^\.]\+\)\.fetch=#\1 #;p;};' \
| while read -r remote refspec ; do
    git fetch ${remote} --prune --no-tags --no-write-fetch-head --recurse-submodules=no --refmap= --quiet ${refspec};
done

Regards,

--Tom