Sorry, this is an oversight, there is no way to dismiss this dialog right now. I put a fix into the next beta, should be out soon.
Are there other places you are having this problem? Please let me know so I can fix them.
If you really need to fix this, then at least on windows it should be possible to inject an 'enter' keypress into the event stream for the process. This would be through Win32 APIs. I can't really help you to do this but I know it is possible, you will have to google around for it.