[Koha-bugs] [Bug 20817] Add ability to retain 9xx fields when adding on order item to existing record

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

https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=20817

--- Comment #43 from Marcel de Rooy <m.de.rooy at rijksmuseum.nl> ---
     my $string = shift;
     return unless $string;
     $string =~ s/^\s+|\s+$//g;
-    return $string;
+    return $string // q{};

Note the first return too.

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