Fix bug in getting creation date commit when multiple creations

When you rename a file, that's also counted as creation.

Author: timvink

mkdocs_git_revision_date_localized_plugin/util.py

@@ -109,6 +109,10 @@ def get_git_commit_timestamp(
                 commit_timestamp = git.log(
                     realpath, date="short", format="%at", diff_filter="A"
                 )
+                # A file can be created multiple times, through a file renamed. 
+                # Commits are ordered with most recent commit first
+                # Get the oldest commit only
+                commit_timestamp = commit_timestamp.split()[-1]
             else:
                 commit_timestamp = git.log(
                     realpath, date="short", format="%at", n=1