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-rw-r--r--Bugzilla/Bug.pm2
1 files changed, 2 insertions, 0 deletions
diff --git a/Bugzilla/Bug.pm b/Bugzilla/Bug.pm
index 6f22d967c..1d12ee2cf 100644
--- a/Bugzilla/Bug.pm
+++ b/Bugzilla/Bug.pm
@@ -296,6 +296,8 @@ sub check {
my $class = shift;
my ($id, $field) = @_;
+ ThrowUserError('improper_bug_id_field_value', { field => $field }) unless defined $id;
+
# Bugzilla::Bug throws lots of special errors, so we don't call
# SUPER::check, we just call our new and do our own checks.
my $self = $class->new(trim($id));