I found an error/omission in the PDF spec 20 years ago and it's still there despite my efforts to characterize and report it to the grand overlords of PDF. (There is no security implication, hence I am nobody.)

When Apple eventually changed their implementation to be consistent with Adobe's, I gave up all further attempts as a waste of time.

My errata document is available under a $5000/yr corporate subscription agreement to my personal standards and practices library. Sorry, I do not offer memberships to individuals.