Hi there,

If I use a preferred content expression like the following:

    include=subdir/*

it does not work in commands like `git annex get --auto`.

But the following works:

    include=*

Here is a short bash script that can be used to recreate this issue:

    mkdir annexA && cd annexA
    git init && git annex init
    git remote add annexB ../annexB

    mkdir ../annexB && cd ../annexB
    git init && git annex init
    git annex wanted . "include=subdir/*"
    git remote add annexA ../annexA

    cd ../annexA && mkdir subdir
    echo "lorem ipsum" > subdir/test.txt
    git annex add . && git annex sync

    cd ../annexB && git annex sync
    git annex get --auto

I'm using **Git 2.28.0.windows.1** and **git-annex 8.20200815-g335aae266**.
