Your bug report

#63842: 30.0.50; Slow 'gnus-summary-refer-thread'

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 63842@debbugs.gnu.org.

-- 
63842: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=63842
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