jisaacks/GitGutter — pull request #190 by philippotto (2014-09-12 16:16:51+00:00)
Title: Use get_handler method in ViewCollection to avoid key error

When calling the untracked method of ViewCollection, it happens quite often that the views dictionary doesn't contain the key. Thus, leading to a key error.
I don't know whether there was a specific reason to not use the existing get_handler function, but I think that this solves the issue.