diff --git a/lib/constraints/project_url_constrainer.rb b/lib/constraints/project_url_constrainer.rb
index 4c0aee6c48f48cd90f8181c46048ef97a9503646..fd7b97d3167c3f1240b53ab109668f863313babc 100644
--- a/lib/constraints/project_url_constrainer.rb
+++ b/lib/constraints/project_url_constrainer.rb
@@ -6,6 +6,8 @@ class ProjectUrlConstrainer
 
     return false unless DynamicPathValidator.valid_project_path?(full_path)
 
+    # We intentionally allow SELECT(*) here so result of this query can be used
+    # as cache for further Project.find_by_full_path calls within request 
     Project.find_by_full_path(full_path, follow_redirects: request.get?).present?
   end
 end