Wooow! Are you ex-Qatar?! So, my info is correct about the 12 months, right? (I was just told by an ex-Qatar boy but it`s better to hear it from someone who went through the whole thing.) So, this rule is valid even if you only worke a couple of months there, right?
Although, I think nobody finds out your QR-background if you don`t mention it in your CV and change your passport, right? That`s all I could suggest the people who wouldn`t want to wait 12 months...