What version are you running?
1.7.0
What's the URL of the page containing the problem?
http://demo.reviewboard.org/r/7913/
What steps will reproduce the problem?
1. Add a non-existing reviewer by typing gibbish in the people field, like "asdsadsadsda"
2. Click on "ok" or press enter
3. Notice the red warning section appears and hides. However, the spinner never disappears and the "Publish"/"Discard Review Request" buttons are disabled.
What is the expected output?
The spinner should disappear and "Publish"/"Discard Review Request" should be enabled.
What operating system are you using? What browser?
Linux Mint Chrome
Please provide any additional information below.