If you have a pretty recent org-ref, You can set a list of functions for
org-ref-clean-bibtex-entry:
https://github.com/jkitchin/org-ref/blob/master/org-ref.el#L302
Use this in an init file, and remove the functions you don't want to
run.
(setq org-ref-clean-bibtex-entry-hook
'(orcb-key-comma
Dear list,
I am using org-ref-clean-bibtex-entry to clean up my biblatex file. Among
other things, this function detects if there are non-ASCII characters in
each bibtex/biblatex entry. My file has many non-ASCII characters that
are exported via Latex to pdf with no problems because my setup is
