Fix nil error when submitting report without `rule_ids` (#17713)

diff --git a/app/models/report.rb b/app/models/report.rb
index 3dd8a6fdd4ce385f49eb019981b063c51161c0e8..8ba2dd8fd2bd07e2522a368a180b224ffa624fb2 100644 (file)
--- a/app/models/report.rb
+++ b/app/models/report.rb
@@ -129,6 +129,6 @@ class Report < ApplicationRecord
   def validate_rule_ids
     return unless violation?
 
-    errors.add(:rule_ids, I18n.t('reports.errors.invalid_rules')) unless rules.size == rule_ids.size
+    errors.add(:rule_ids, I18n.t('reports.errors.invalid_rules')) unless rules.size == rule_ids&.size
   end
 end