Comment 4 for bug 1387057

In addition to the unquoted "$quoted" that @peter-cordes mentioned, there's another bug in the _filedir() function:

    --- /usr/share/bash-completion/bash_completion--OLD 2015-08-19 19:58:22.734667377 -0500
    +++ /usr/share/bash-completion/bash_completion 2016-01-05 15:56:50.442988910 -0500
    @@ -604,6 +604,8 @@
             # 2>/dev/null for direct invocation, e.g. in the _filedir unit test
             compopt -o filenames 2>/dev/null
             COMPREPLY+=( "${toks[@]}" )
    + else
    + compopt -o bashdefault 2>/dev/null
         fi
     } # _filedir()

This lets you eat your cake and have it, too: you can keep your "shopt -s progcmp" bash_completion AND if that doesn't find a match, it will fall back to using bash's default glob-handling.

(This also solves Bug 1361404)