Bug 13641

Summary: 979 prefixed ISBN-13's crash Koha when attempting to convert to ISBN-10's
Product: Koha Reporter: Kyle M Hall <kyle>
Component: CatalogingAssignee: Galen Charlton <gmcharlt>
Status: RESOLVED DUPLICATE QA Contact: Testopia <testopia>
Severity: enhancement    
Priority: P5 - low CC: m.de.rooy
Version: unspecified   
Hardware: All   
OS: All   
Change sponsored?: --- Patch complexity: ---
Documentation contact: Documentation submission:
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Description Kyle M Hall 2015-01-29 20:08:59 UTC
ISBN's with a prefix of 979 ( such as 9799577623170 ) cannot be converted to ISBN-10s ( as per http://www.isbn.org/about_ISBN_standard ).

When Koha tries to convert a 13 with a prefix of 979 to a 10, it gets back nothing, on which it calls as_string(). This is not good.
Comment 1 Kyle M Hall 2015-01-29 20:11:01 UTC

*** This bug has been marked as a duplicate of bug 13167 ***