Your bug report

#56256: Emacs 28.1 gets stuck when typing some C++ code

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 56256@debbugs.gnu.org.

-- 
56256: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=56256
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