The only place I've found the 2012 bit is on the Wikipedia article about the flag of Angola, but the fact itself is unsourced. Perhaps the person who made the edit assumed that the 2012 parliamentary and presidential elections would be followed by a flag change? But I don't see why that would be necessary. It's not like the flag is running for parliament or president or anything.
That edit on Wikipedia (
here) was unsourced, made only 5 days ago, grammatically incorrect, and made by an annonomus IP who, from their edits, has only been on Wikipedia once and had never contributed to any other Angolan articles. Most of his articles have been vandalising about Indonesia hosting the World Cup (
here,
here and
here)*. Not a person you would trust.
Therefore, since there seems to be no news coverage of this at all I assume the OP read the wiki article and decided to post it here. I'm not accusing
JJDXB of anything, but unless he can find any other source I will have to say this is complete ***.
That is why you don't rely on Wikipedia as your only source of knowledge. I have since undone the edit. Let's call this an experience and move on.
*Quick note to those of you who don't follow football/soccer, Indonesia
can't host the next World Cup as it is in Asia the time before.