What version are you running?
RBTools 0.6.3 alpha 0 (dev)
What's the URL of the page containing the problem?
What steps will reproduce the problem?
1. Create an empty hg repository
2. Clone that repository
3. Commit a change
4. Run `rbt diff`
What is the expected output? What do you see instead?
The expected output is the diff (i.e., the contents of a change).
The current output is: CRITICAL: list index out of range
What operating system are you using? What browser?
OS X. N/A
Please provide any additional information below.