Bug: org-checkbox face for alphabetical items is not set [9.4.4,(9.4.4-16-g0abd4a-elpaplus @ ~/.emacs.d/elpa/org-plus-contrib-20210201/)]

[chemmi]

Hi folks,

I ran into the following minor issue regarding the facing of org-mode
items.

I set org-list-allow-alphabetical to allow alphabetical item
enumeration. But it seems that the org-checkbox face is not set if there
are checkboxes.

Example:

#+begin_src org
- [ ] Hello
  1. [ ] World
     a. [ ] foo
#+end_src

In my setup, the [ ] at 'a. [ ] foo' does not appear as
checkbox. However, the interaction, e.g. C-c C-c for toggle, does still 
work.

This should be easy to fix, but I do not yet have access to the gogs
server.

Regards,
chemmi

Package: Org mode version 9.4.4 (9.4.4-16-g0abd4a-elpaplus @
~/.emacs.d/elpa/org-plus-contrib-20210201/)