If you have already been approved, your situation is very different. If the question is raised at the citizenship interview, you will just need to provide an explanation that makes sense. For example, if a person renewed his NP because he had to travel to UAE, he can say that:
1) UAE does not recognize RTD
2) Produce a copy of his flight itinerary as evidence.
3) Produce copy of an Official Letter from UAE Embassy confirming that is the case.
Renewing your NP after adjustment will reduce the burden since you won't have to preserve your status as an asylee. I highly doubt that you will come across any problems especially if the timeline between your I-485 approval, National Passport renewal, and visits to country of persecution makes sense. In another word, if you don’t raise any fraudulent flags.
As a Permanent Resident, your attorney will also have more leverage to defend your case; he can now argue that the situation in your country had changed something that he would not have been able to if your I-485 is still pending. Before you make a decision to renew, I suggest you go to the citizenship forum and read the experiences of people who have been to citizenship interviews, and get a feel of what the interviews are like. Weigh the pro and cons and then decide what's best for you. You can find the experiences broken down by cities on a sticky at the top of the forum. I think I have said just about everything on this issue, i don't think that there is anything else to say except good luck to all of you!