X-Git-Url: http://wagnertech.de/gitweb/gitweb.cgi/mfinanz.git/blobdiff_plain/15176cbb3b162a07a055dbe6cfc0f98f9d65d0df..3b9f657cde3311f7e9ef0edef1f182076a0f0cf9:/SL/Helper/Inventory.pm

diff --git a/SL/Helper/Inventory.pm b/SL/Helper/Inventory.pm
index a1a142803..17ecc20e1 100644
--- a/SL/Helper/Inventory.pm
+++ b/SL/Helper/Inventory.pm
@@ -283,6 +283,7 @@ sub check_constraints {
 
     for (keys %$constraints ) {
       croak "unsupported constraint '$_'" unless $supported_constraints{$_};
+      next unless defined $constraints->{$_};
 
       my %whitelist = map { (ref $_ ? $_->id : $_) => 1 } listify($constraints->{$_});
       my $accessor = $supported_constraints{$_};