What version are you running?
0.7.5
What's the URL of the page containing the problem?
https://rbcommons.com/s/twitter/r/4159/diff/1-2/
What steps will reproduce the problem?

expand the view. line 163 is changed. but no shown










What is the expected output? What do you see instead?
a red line indicating removal
What operating system are you using? What browser?
osx. chrome.
Please provide any additional information below.