Hey Bastien,
After this patch, org-mode loads the most updated config. A minor issue
that I have is that this patch creates config.el in my dotfiles directory,
instead of ~/.emacs.d/config.el ,since ~/.emacs.d/config.org is a symlink
to ~/dotfiles/config.org. The behaviour in org-9.1.5(emacs 26.3),
The org-babel-load-file behavior for symlinks seems to have changed
between org-9.1.5(emacs 26.3) and org-9.3(emacs 27.0.6).
The change seems to be that org-9.3 gets the modification time for the
file, which org-9.1.5 resolves the file in case the orginial file is a
symlink before doing the same.