I think it is somewhat annoying when I install a Lisp package and it
asks me whether I want to save a completely unrelated buffer in some
other project.  This is especially true, if this unrelated buffer has a
function like check-parens on its after-save-hook, which may signal an
error, and in turn will abort the whole package installation.

The buffer saving happens in byte-recompile-directory via
save-some-buffer. So I wonder, if this can be made more selective, like
so: