I believe this has already been fixed:
https://github.com/elliotcondon/acf/commit/686eba9290c7133f492fbc3bc318e4c50804a2a5
Though I’m not sure in which version this would be present.
Did Elliot stop tagging the versions on Github?
I currently have 4.3.8 installed but Github only goes up to 4.3.5
