1) I am presented with a question submitted for closure review.
2) I open the link in another browser tab, in order to also read the answers given there and have a better understanding of the issue.
3) While on this page, I vote to close the question as a duplicate. Clicking again "close" in order to verify that my vote has been registered I see that indeed it has - the counter of the votes to "close as a duplicate" has increased from 0 to 1, and I am presented with the option to retract my vote. Fine, MSE seems to have registered it.
4) Strangely, this vote does not appear in my closing votes history. It is as if it didn't exist. Strangely too, my name doesn't appear among those who voted on that question.
Is this a bug, or some counterintuitive intended behaviour?