I recently asked a question about (not) reading Shakespeare in class. Two correct answers arrived within a few seconds of each other.
It also rapidly appeared that the question was a dupe.
I wanted to follow user14111's advice to "green check" one answer and give a bonus to the other one. But it seems the only way is to start a bounty. Which needs 48 hours delay. So I carefully did not accept either answer, to wait till I could start the bounty. I wanted to start it, wait for another 24 hours to grant it to one answer and finally "green check" the other one. At which point the question would be closed a dupe.
But since I made clear in my comments that the answers were correct, my question was closed before I could create the bounty. Even though I had not "green check" either answer. Curiously, I was still able to "green check" one answer after the question was closed.
How can I give the bonus to the other one ?