While the BibTex export does LaTeX-escape non-ASCII entities, the import doesn't

I am using the BibTex export as a way to migrate a big bibliography between two sites. However, while my exported bibliography gets properly escape all (yes, I know it's rather a best-effort) non-ASCII entities, the import does not turn them back into the originals. This means, while I do have many such examples in my output:

@book {398,
	title = {Desarrollo Econ{\'o}mico y Cambio Institucional: Una aproximaci{\'o}n al estudio del atraso econ{\'o}mico y el desarrollo tard{\'\i}o desde la perspectiva sist{\'e}mica},
	year = {2010},
	month = {02/2010},
	author = {Miguel {\'A}ngel Rivera R{\'\i}os}
}

When importing them, the author name is not changed back into Miguel Ángel Rivera Ríos.

I am far from a PHP coder, but I see this might be an oversight — You do ship both modules/bibtexParse/transtab_latex_unicode.inc.php and modules/bibtexParse/transtab_unicode_bibtex.inc.php, but only the latter is called from modules/bibtexParse/biblio_bibtex.module

Thanks a lot for your hard work and a great module,