Your bug report

#63290: 30.0.50; Customize UI shows extra fields for (choice (const ...) (alist ...))

which was filed against the emacs package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to 63290@debbugs.gnu.org.

-- 
63290: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=63290
GNU Bug Tracking System
Contact help-debbugs@gnu.org with problems