What version are you running? 2.0.12 What's the URL of the page containing the problem? N/A What steps will reproduce the problem? 1. Create a topic where the description is as below (see additional info). 2. Publish it. 3. Add a space to the line 'item three' (i.e., "3. item three ") and republish, which will produce a "review request changed" section. What is the expected output? What do you see instead? This raises an uncaught exception in Python. If it does not do so immediately, try forcing a page refresh that does not hit the cache. The end of the stack trace is: File "/usr/lib/python2.7/site-packages/reviewboard/reviews/markdown_utils.py", line 241, in iter_markdown_lines i += 1 TypeError: unsupported operand type(s) for +=: 'instance' and 'int' What operating system are you using? What browser? OS X 10.10.2. Chrome Version 42.0.2289.0 canary (64-bit) Please provide any additional information below. Use the following as the description, minus the "--begin"/"--end" lines. -- begin description -- 1. item one -- change this item second time /usr/bin # * stuff here # 2. item two -- change this item * stuff here 3. item three 3. wrong number -- end description --