Import / dublin-core / Some dct elements are removed on import

[fxp]

Import file (with generateUUID option):

<simpledc xmlns:dc="http://purl.org/dc/elements/1.1/" [^] xmlns:dct="http://purl.org/d [^]
c/terms/">
    <dc:title>Quality Information Document</dc:title>
    <dct:alternative>http://catalogue.myocean.eu.org/static/resources/myocean/quid/MYO_QUID-AR [^]
C-MFC-RA_V2_BIO.pdf</dct:alternative>
    <dct:dateSubmitted>2012-02-28</dct:dateSubmitted>
    <dc:type>publication</dc:type>
</simpledc>

Results:

<?xml version="1.0" encoding="UTF-8"?>
<simpledc xmlns:dc="http://purl.org/dc/elements/1.1/" [^] xmlns:dct="http://purl.org/d [^]
c/terms/">
    <dc:title>Quality Information Document</dc:title>
    <dct:modified>2012-11-22T11:19:00</dct:modified>
    <dc:type>publication</dc:type>
    <dc:identifier>974f0cf8-5f4a-4588-8bfd-4036b4f5e4d4</dc:identifier>
</simpledc>

[fxp]

master commit c8984ea9e8b1248c1680ec0ae9aefc70cb4faedb