This seems more like a race condition, see:

    $ f() { ( sleep 0.1; exit 13 ) & "$@"; wait -n; echo $?; }
    $
    $ f sleep 0.0
    [1] 30612
    [1]+  Exit 13                 ( sleep 0.1; exit 13 )
    13
    $ f sleep 0.2
    [1] 30617
    [1]+  Exit 13                 ( sleep 0.1; exit 13 )
    127

Reply via email to