Google Scholar ordering of metadata tags with multiple values (like authors) broken

We got an email from the Google Scholar team mentioning that the ordering of authors in the Google Scholar metatag list is broken.
I checked the problem and it seems to be realated to this ticket:
https://jira.duraspace.org/browse/DS-2309?jql=project%20%3D%20DS%20AND%20text%20~%20%22scholar%20author%22

To see the problem look at the source code of an item page with multiple authors like:
http://demo.dspace.org/jspui/handle/10673/44 or
http://demo.dspace.org/xmlui/handle/10673/44

on this pages the metatags look like:

<meta name="citation_title" content="texto" />
<meta name="citation_abstract_html_url" content="http://demo.dspace.org/xmlui/handle/10673/44" />
*<meta name="citation_author" content="Vorname3, Nachname3" />*
<meta name="citation_date" content="2015-07-28T10:59:59Z" />
*<meta name="citation_author" content="Vorname1, Nachname1" />*
*<meta name="citation_author" content="Vorname2, Nachname2" />*
*<meta name="citation_author" content="garcia, victor" />*

but should look like:

<meta name="citation_title" content="texto" />
<meta name="citation_abstract_html_url" content="http://demo.dspace.org/xmlui/handle/10673/44" />
*<meta name="citation_author" content="garcia, victor" />*
*<meta name="citation_author" content="Vorname1, Nachname1" />*
*<meta name="citation_author" content="Vorname2, Nachname2" />*
*<meta name="citation_author" content="Vorname3, Nachname3" />*
<meta name="citation_date" content="2015-07-28T10:59:59Z" />