This question is the exact duplicate of this question and both were answered by the same user with the exact same answer (Although he has mentioned it as a duplicate in his second answer and the question itself) and both of them were accepted by the questioner.
My problem is that I cannot flag the question as duplicate as I get the below error:
I read this -How to deal with duplicate bounty questions?
and it quotes:
If you (or anyone else) feel strongly about closing one as the duplicate of the other, you (or anyone else) can just wait until the respective lock (due to the active bounty) expires and vote to close as usual.
How can this be a solution when the exact same answer is accepted both the times by the questioner?