Re: From another angle...
It can be in two countries in the world which have no written constitution:
1. United Kingdom
2. Saudi Arabia
In these counties, anything and everything as far as the rule of the game can be changed mid-game by the "house". The sole difference is that in the first case it is changed by the MPs, while in the second the ruling member of the Saud dynasty. They can however change and rig the dice any way they like and plebs like you and me should just shut the f*** up.
Further to this, by default a referendum as a concept in the UK has no legal power whatsoever, unless legal power has been specifically delegated to it by the act which sets up the referendum. Surprise, surprise, the act setting up the "Referendum of Infamy" did not do that.