Your bug report

#48545: 28.0.50; `icomplete-vertical-mode` does not support the `group-function`

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 48545@debbugs.gnu.org.

-- 
48545: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=48545
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