Recently when reviewing in the close vote queue, I came across a post that I was pretty sure I had seen some weeks prior. So after a bit of investigation I determined that I had in fact seen the post before. What I found was that the post had been removed from the close vote queue by a 1 character edit.
When reviewing in the close queue, editing a post will remove the post from the queue. This is because the post was presumably improved, and no longer needs to be closed.
Normally, multiple leave-open votes are required to remove a post from the queue. But armed with the knowledge of how the system works, it is possible to unilaterally remove the post from the queue with something as small as a 1 character edit.
Is performing a trivial edit to remove a post from the review queue considered "fair game", or is this behavior frowned upon?