[Koha-bugs] [Bug 4450] Type of error return causes problems

[bugzilla-daemon at kohaorg.ec2.liblime.com]

http://bugs.koha.org/cgi-bin/bugzilla3/show_bug.cgi?id=4450





--- Comment #6 from Colin Campbell <colin.campbell at ptfs-europe.com>  2010-05-07 10:25:27 ---
>Within the context of labels/cards, -1 should never be valid data since all
>valid data either consists of an index field or a data structure (ie. hash or
>array)

The initial perceived issue is that where return is a hash or array we're
dereferencing -1 and crashing and burning, hence the logic 


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