I think he is talking about the "fixes orgies" which are likely to happen when a good developer is in the "flow" :)
Reading a commit log actually is not supposed to repeat all information if you work with an Issue System or discuss PR. That just highly redundant information in that case.
BUT.. Wait! See this screenshot: http://snpy.link/5Ht6v4
If you really want to now what it "fixes". Move your mouse over it .. with or without shift! This works for many places where information in GitHub is referenced. No need to click the links.