Steps to Reproduce:
1. Open http://tlrobinson.net/Recorder/ (with the slash)
2. Click Record
3. In the "Source List" table, double click on an entry and change it ("21" to "Foo Bar" or something)
4. Click stop.
5. Click play.
6. When it tries to replay you entering the text, it crashes.
Created attachment 53550 [details]
This only fixes the crash - the original test case still fails, as replayed keyboard events don't result in text input. I'm not sure if that's necessarily a bad thing.