Is that really so? It seems odd because not every country has soil-based birthright citizenship. So, there must be some combinations that will result in a stateless person (although I would expect that this is an exceptional case that is just handled as an exception).
Where? I haven't really heard of many cases like this. Usually the most abuse that happens is someone "forgetting" their citizenship and trying to gain asylum, because they know they can't get citizenship otherwise, anyway.
