gitk: Follow renames

Hello.

I am using gitk to lookup changes to specific files:

$ gitk example.txt

I noticed that the history is cut off if I renamed or moved the file
somewhen in the past.
Although I use the --follow parameter gitk does not resolve the former
file history:

$ gitk --follow example.txt

However, when I use git log --follow the full history is output:

$ git log --follow example.txt

Can you please let gitk resolve the full history as git log does already?

Thank you for your work! I appreciate very much.
Best regards, Tobias