Note: this is my opinion and not an official statement
Does the part in question have a set number in the KEYWORDS? If not, I'd say that adding that is cause to recycle the part since it's out of compliance with our current Library Spec. Consequently, if you're added the set number keyword then adding a Bricklink reference can happen at the same time. Since these are header only edits they should qualify for fast track review.
Does the part in question have a set number in the KEYWORDS? If not, I'd say that adding that is cause to recycle the part since it's out of compliance with our current Library Spec. Consequently, if you're added the set number keyword then adding a Bricklink reference can happen at the same time. Since these are header only edits they should qualify for fast track review.