[Koha-bugs] [Bug 23846] New: bad iso 2709 record silently results in broken marcxml

[bugzilla-daemon at bugs.koha-community.org]

https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=23846

            Bug ID: 23846
           Summary: bad iso 2709 record silently results in broken marcxml
 Change sponsored?: ---
           Product: Koha
           Version: 19.05
          Hardware: All
                OS: All
            Status: NEW
          Severity: normal
          Priority: P3
         Component: MARC Bibliographic record staging/import
          Assignee: koha-bugs at lists.koha-community.org
          Reporter: dominique at leducq.net
        QA Contact: testopia at bugs.koha-community.org

Created attachment 94419
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https://bugs.koha-community.org/bugzilla3/attachment.cgi?id=94419&action=edit
iso 2709 with problematic record

The (UNIMARC) ISO 2709 record in the attached file (26080509.txt) seems to have
a problem : the 009 field should contain an ARK identifier but seems to be
something else, with a subfield separator in it.

When imported into koha, it is said to be imported all right, but when trying
to access the notice, we get the following error message :

Invalid data, cannot decode object (id=9865, format=marcxml, schema=UNIMARC)

Investigating, I found that the marcxml in biblio_metadata.metadata is broken :

the content of the <controlfield tag="009"> element is a verbatim copy of the
009 field, including the (non-printable, 0x1F) subfield separator (cf line 9 of
the attached marcxml)
When I deleted this element in the database, all seems to work fine.

I think either the record should be rejected alltogether, with an explicit
error message, or the erroneous field should be droped.

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