Why a file attached by means of attach/attach2 package isn't open with same name?

When a file is attached thanks to textattachfile{⟨file⟩}{⟨text⟩} provided by attach(2) package, the file open by the link has same content but not same name as ⟨file⟩.

For instance, in the following MWE, I pretend the link will open foo.tex but it will open foo.tex.xxx instead, where xxx is a random string. The file open has the same content as foo.tex but, because of its strange extension, is not open as a .tex file by the underlying text editor.

begin{filecontents*}{foo.tex}
documentclass{article}
begin{document}
Foo.
end{document}
end{filecontents*}
%
documentclass{article}
usepackage{xcolor}
usepackage[color=black]{attachfile2}
begin{document}
textattachfile{foo.tex}{Link to `foo.tex'}.
end{document}

Is there a way for a file attached by means of attach/attach2 package to be open with same name?