What's the URL of the page containing the problem?
https://hellosplat.com/s/beanbag/tickets/####/

What steps will reproduce the problem?

Load bug in browser A
Load bug in browser B
Modify bug summary in browser B
Submit modified bug summary in browser B
Modify bug summary in browser A
Attempt to submit modified bug summary in browser A


What is the expected output? What do you see instead?
The expected output would be a notification that the bug has been updated by someone else and your update is stale, with options to reload etc. Awesomeness would be displaying the changes and giving the option to merge if possible.
Currently what happens is the submission silently fails everytime you click the submit button.
What operating system are you using? What browser?
OSX 10.11 / Firefox Nightly 49.0a1