I recently reviewed a question in the "reopen votes" queue. I wanted to keep the question closed because it was a single-word request but did not include sufficient information about how the word would be used. I therefore clicked the appropriate reason to keep it closed and then clicked "keep closed". However, I got an error saying that I needed to select a reason before submitting. (See screenshot below.) I tried this a couple of times but kept getting the same error. Is this a bug?