Lowercase emails, fixes #59

Author: timvink

mkdocs_git_authors_plugin/git/commit.py

@@ -36,8 +36,11 @@ def __init__(
 
         # Replace <>
         # from '<[email protected]>'
-        # to   '[email protected]'
+        # to   '[email protected]'        
         author_email = re.sub(r"\<|\>", "", author_email)
+        # Lowercase, as emails are not case sensitive.
+        # See https://github.com/timvink/mkdocs-git-authors-plugin/issues/59
+        author_email = author_email.lower()
 
         self._author = self.repo().author(author_name, author_email)
         self._datetime = util.commit_datetime(author_time, author_tz)