An 18 year old Hong Kong born Singaporean wants to renounce his Singaporean citizenship. Obviously ICA did not allow him to do so and he is seeking judicial review in the courts. This is, for as long as I have been following such issues, the first time someone is challenging a citizenship issue in court. I think the result is pretty clear but it will be interesting to see what the court says.
It seems I can't copy the URL here but do a quick Google search.