are you sure? every time i pass through they ask me if i have an israeli one
That's because they updated there data base around 8-10 years(more or less) ago,
so if you didn't leave the country or come in before that time they don't have it linked.
And if you don't have a a israeli passport at all, the law is that if your parent/parents are israeli then you have a status of menditory service in the army,
So they wanna find out if you are hiding anything.
I've had a friend that I was taken in for a half an hour questioning to find out if his parents are israeli. (Btw they were and he passed
)