*I'm aware of the [existing question](https://meta.stackexchange.com/questions/99882/flag-a-question-dialog-bug) on this topic, but that was tagged as 'status-completed' last year so I'm assuming it had the same symptoms but a different cause.*

When flagging an answer, the pop-up with a selection of radio buttons appears for you to choose a reason.

If you select the '**other**' option (under Moderator Attention), the '*Flag Answer*' button is disabled until you enter enough accompanying text (at least 10 chars).

However, if you change your mind before typing anything and select the '**it is spam**' option instead, the button is never re-enabled and you have to close the pop-up and start again.

![screenshot](https://i.stack.imgur.com/SAxOq.png)

I've reproduced it on IE9 and FireFox 12 so far.

**EDIT:** also reproduced in Chrome 19.0.1084.46 m 

In case it's relevant, I'm accessing it via [Review](https://stackoverflow.com/review/) on the ***Late Answers*** tab and clicking *review answer* before clicking *flag*