In Zotero 7 Beta (47+f012a348a (64-bit), Windows), RIS import is partially broken. Even items explicitly identified as other types get imported as journal articles, often with substantive metadata missing that's included in the RIS.

For example, if I have the RIS

TY - BOOK
TI - 1 Peter: an introduction and commentary
AU - Grudem, Wayne A.
CY - Downers Grove, IL
VL - 17
PB - InterVarsity Press
PY - 1988
SP - 239
ER -

The import will work as expected in Zotero 6.0.27 and produces an item with the following RDF:

<rdf:RDF
xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#";
xmlns:z="http://www.zotero.org/namespaces/export#";
xmlns:dc="http://purl.org/dc/elements/1.1/";
xmlns:vcard="http://nwalsh.com/rdf/vCard#";
xmlns:foaf="http://xmlns.com/foaf/0.1/";
xmlns:bib="http://purl.org/net/biblio#";
xmlns:prism="http://prismstandard.org/namespaces/1.2/basic/">;
<bib:Book rdf:about="#item_29947">
<z:itemType>book</z:itemType>
<dc:publisher>
<foaf:Organization>
<vcard:adr>
<vcard:Address>
<vcard:locality>Downers Grove, IL</vcard:locality>
</vcard:Address>
</vcard:adr>
<foaf:name>InterVarsity Press</foaf:name>
</foaf:Organization>
</dc:publisher>
<bib:authors>
<rdf:Seq>
<rdf:li>
<foaf:Person>
<foaf:surname>Grudem</foaf:surname>
<foaf:givenName>Wayne A.</foaf:givenName>
</foaf:Person>
</rdf:li>
</rdf:Seq>
</bib:authors>
<dc:title>1 Peter: an introduction and commentary</dc:title>
<dc:date>1988</dc:date>
<prism:volume>17</prism:volume>
<z:numPages>239</z:numPages>
</bib:Book>
</rdf:RDF>

But in the latest beta, import of the same RIS produces an item with the following RDF:

<rdf:RDF
xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#";
xmlns:z="http://www.zotero.org/namespaces/export#";
xmlns:dcterms="http://purl.org/dc/terms/";
xmlns:prism="http://prismstandard.org/namespaces/1.2/basic/";
xmlns:bib="http://purl.org/net/biblio#";
xmlns:foaf="http://xmlns.com/foaf/0.1/";
xmlns:dc="http://purl.org/dc/elements/1.1/">;
<bib:Article rdf:about="#item_29948">
<z:itemType>journalArticle</z:itemType>
<dcterms:isPartOf>
<bib:Journal><prism:volume>- 17</prism:volume></bib:Journal>
</dcterms:isPartOf>
<bib:authors>
<rdf:Seq>
<rdf:li>
<foaf:Person>
<foaf:surname>- Grudem</foaf:surname>
<foaf:givenName>Wayne A.</foaf:givenName>
</foaf:Person>
</rdf:li>
</rdf:Seq>
</bib:authors>
<dc:title>- 1 Peter: an introduction and commentary</dc:title>
<dc:date>- 1988</dc:date>
</bib:Article>
</rdf:RDF>
As development of Zotero 7 continues, would it be possible to remedy this situation?

Thanks so much!